(Classified)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-05613A000300060002-7
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 68
• Document Creation Date: December 9, 2016
• Document Release Date: May 4, 1999
• Sequence Number: 2
• Publication Date: June 4, 1963
• Content Type: REPORT

Ap r ved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
C
a
FO.~ TION
PION op A
Do;.amcnt so.
Rt.iaAF of tUs clay? m ut by CIA has
detsrm!nad that
[] CIA has no o6",ection to declass
Q it com: ni ms is i iewatieu of CIA
iset~+ .fi .;sat mist rcma~n
clai5i'.;d at TS S
Gut.1mityi U. U-2
t
tt GC =2''c. s ralhisiw ct V ;'A Alf',
Date Q(0 /_0 4- R3riZcJCr
Approved For Release 2001/07/30 : CIA-RDP78-05613AOQ03Q0060002-7
 Approved For Rele 01/07/30: CIA-RDP78-05613A0003,0 002-7
SPE" CI VI CLT I ON
SECTION
1 ,
EXCAVATION, FILLING I:,NL BAC FILLING
1-01--1-03
SECTION
2
CONCL,TE
:-01--2-15
SECTION
3
k: IiSON tY
3-01--3-03
SECTION
4
CIS-tPEN hY
4-01--4-07
SECTION
5
TE.t;;t,AZZC
5-01--5-04
SECTION
6
Cl:LKING
6-01--6-02
SECTION
7
ZGOFING AND WATE MCOFING
7-01--7-05
SECTION
8
PLASTEAING
8-01--8-03
SECTION
9
PAINTING
9-01--9-04
SECTION
10
HAMill"`82 : B?TILLE.1S'
10-01--10-02
SECTION
11
:', ISCELI4NEOUS v:ETAL
11-01--11-03
SECTION
12
GLASS AN1 GLIAZING
12-01--12-02
SECTION
13
FINISHING
,13-01--13-03
SECTION
14
ELECTRICAL GM&q INTERIOR
14-01--14-06
SECTION
15
PLUi5: UNG
15-01--15-04
Approved For Release 2001/07/30 CIA-RDP78-05613A000300060002-7
 Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
SECTION 1
EXCAVATION, FILLING AND BACKFILLING
1-01 SCOPE: The work covered by this section of the specifica-
tions consists in furnishing all plant, labor, equipment, appliances and
materials not furnished by the Government, and in performing all opera-
tions in connection with the excavation, filling and backfilling complete,
in strict accordance with this section of the specifications and the
applicable drawings, and subject to the terms and conditions of the
contract.
1-02 APPLICABLE STANDARD: The following standard, of the issue
listed below but referred to thereafter by basic designation only, forms
a part of this specification:
American ssociation of State Highway Officials Standard Method:
T 99-49 Standard Laboratory Method of Test for the
Compaction and Density of Soil
1-03 EXCAVATION:
a. General: The site indicated on the drawings shall be
cleared of natural obstructions and existing foundations, pavements,
utility lines and other items that would interfere with the construc-
tion operations. The excavation shall conform to the dimensions and
elevations indicated on the drawings, and shall include trenching for
utility systems line, and all work incidental thereto. Excavation shall
extend a sufficient eistance from walls and footings to allow for plac
ing and removal of forms, installation of services and for inspection,
except where the concrete for walls and footings is authorized to be
deposited directly against excavated surfaces. Underoutting will not
be permitted. Suitable escavated material required for fill under slabs
shall be separately stockpiled as directed by the contracting Officer.
b. Drainage: -Excavation shall be performed in such manner
that the area of the site and the area immediately surrounding the site
for a distance of 25 feet, including slopes and ditches, will be con-
tinually and effectively drained. Excavation for inlet, outlet and
diversion ditches, as necessary, shall be performed under this section.
c. Shoring, including sheet piling, where required during
excavation, shall be nstalled to protect workmen and the banks, adja-
cent paving, structures and utilities.
Approved For Release 2001/07/30 : CIA-RDP78-05613A00030006000277
 Approved for ReI 001/07/30 CIA-RD P78-05613A0003 10002-7
. d. Protection. or removal_ of utility lines: Existing. utility
lines that are shown on the drawings of the locations of which are made
known to the Contractor prior to excavation and that are to be retained,
as well as utility lines constructed during excavation operations, shall
be protected from damage during excavation and backfilling and, if damaged,
shall be repaired by the Contractor at his expense.. Any existing utility
lines that are to be retained and are not shown on the drawings or the
locations of which are not known to the Contractor in sufficient times to
avoid damage, if inadvertently damaged during excavation, shall be repaired
by the Contractor, and adjustment in payment will be made in accordance,
with the contract. When utility lines that are to be removed are encountered
within the area of operations, the Contractor shall notify the Contract-
ing Officer in ample time for the necessary measures to be taken to pre-
vent interruption of the service. .
e. Excess material from excavation, not required for fill or
backfill, shall be wasted where directed by the Contracting Officer and
shall be graded. No excavated materials will be wasted without authoriza-
tion of the Contracting Officer.
f, Topsoil shall be removed, to a depth of 4 inches, from the
area within lines 25 feet outside foundation walls, and shall be piled as
directed by the Contracting Officer.
g,. Blasting: The Contracting Officer shall be the judge as
to the necessity for the use of explosives. When rock excavation requires
blasting, the Contractor shall exercise care not to overshoot, and shall
be required to remove, at his own expense, any material outside the autho-
rized cross-section which may be shattered or loosened by such blasting.
h. Grad in tt Areas required to be graded shall be constructed
true to grades ahale sshaped to drain, and shall be maintained free from
extraneous accumulations until inspection has been completed and the work
has been accepted.
1-04 FILL: Where concrete slabs are to be placed on earth, any
loam or organic or other unsuitable material shall be removed. Fill,
where required to raise the subgrade for concrete slabs to the elevations
indicated on the drawings shall consist of crushed stone, sand, gravel,
or other approved granular material,, Fill shall be compacted by a power
roller or other approved equipment, and the subgrade brought to a reason-
ably true and even plane. Crushed stone, sand, gravel or other approved
granular material used for fill shall be placed in layers not more than 12
inches thick. Each layer shall be uniformly spread, moistened, or dried
as required, and then compacted to 90 percent of maximum density obtained
at the optimum moisture content as determined by the A.S.S.H '?P. Standard
Method T99 with the following modifications:
1-02
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Re11001/07130 : CIA-RDP78-05613A0003'0002-7
a. The mold shall be 6 inches in diameter and 7 inches high.
A metal spacer disk 5-15/16 inches in diameter and 2-1/2 inches high shall
be used as a false bottom in the mold during compaction.
b. In lieu of removing all material retained on a No. 4 sieve,
all material over 3/4 inch in size shall be removed and replaced with an
equal portion of material between O.,l inch (No. 4 sieve) and 3/4 inch in
size.
c. The weight of the rammer or metal tamper shall be 10 pounds
instead of 5.5 pounds, and the tamper shall be dropped from a height of
18 Inches instead of 12 inches.
d. The samples shall be compacted in five layers, each approx-
imately 1 inch thick and each layer receiving 55 belows with the specified
tamper.
e. .A separate batch of soil shall be used for each compaction
test speciment. No material shall be reused.
1-05 BACKFILLING: After completion of foundation footings, founda-
tion walls, piling, and other construction below the elevation of the final
grades, and. prior to backfilling, forms shall be removed and the excava-
tion shall be cleaned of trash and debris. Backfill shall consist of
approved material from excavation, borrow of sand or gravel, and shall
be free of trash, lumber or other debris. Backfill shall be placed in
horizontal layers not more than 9 inches thick, and shall have a proper
moisture content for the required degree of compaction. Each layer shall
be compacted by hand or machine tampers or by other suitable equipment
to a density approximating that of the adjacent undistrubed soil. Back-
fill under concrete floor slabs shall be compacted to the density spe-
cified hereinbefore for fill. Backfill shall be grought to a sutiable
elevation abofe grade to provide for anticipated settlement and shrinkage
thereof. Backfill shall not be placed against foundation walls prior to
7 days after completion of wall and then only after approval by the
Contracting Officer. Backfill shall be brought up evenly on each side of
the wall as far as practicable. Heavy equipment for spreading and compact-
ing backfill shall not be operated closer to the wall than a distance
equal to the height if the backfill above the top of footing.
1-03:
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele 2p01/07/30 : CIA-RDP78-05613A0003(7MW002-7
2-01 SCOPE:
Furnish,-all plant, labor, equipment, appliances and materials,
and in pefform all operations in connection with the installation of
concrete work, complete, in strict accordance with this section of the
specifications and the applicable drawings, and subject to the terms and
conditions of the contract.
2-02 GENERAL:
Full cooperation shall be given other trades to install embedded
items. Suitable templates or instructions, or both, will be provided for
setting items not placed in the forms. Embedded items shall have been
inspected, and tests for concrete and other materials or mechanical opera-
tions shall have been completed and approved before concrete is placed.
2-03 MATERIALS:
a. ruality requirements for materials listed herein are based
on U.S. Federal Specifications. However, the use of products of reputable
manufacturers is intended where equivalent to the materials specl-
fled, subject to the approval of the Contracting Engineer.
b. Ag re ate: Both coarse and fine aggregate, except for
gradation, limit of absorption, and sources of materials, shall conform
to the requirements of Federal Specification SS-A-28lb. Limit of absorp-
tion shall not exceed 5 percent. The maximum size of coarse aggregate
shall be not larger than one-fifth of the thickness of the member nor
larger than three-fourths of the minimum clear spacing between reinforc-
ing bars.
(1) General: Coarse and fine aggregate shall consist
of crushed river gravel and screenings, or other approved granular
materials of similar characteristics, and shall be composed of hard,
tough, durable and uncoated particles. The equipment and plant used.
in the production of coarse and fine aggregate shall be designed for the
aggregate conforming with the requirements of these specifications.
Dust shall be removed by adequate washing. The particle shape of the
smallest size of crushed coarse and fine aggregate shall be generally
rounded or cubical, and the tolerance of flat and elongated particles in
all sizes of the coarse and fine aggregate shall be governed by the
inherent, placeability requirements of the structure in which the mixture
is to be placed. Rock which breaks down into thin, flat, elongated
particles, regardless of the type of processing equipment used, will not
be approved for use in the production of coarse and fine aggregate. A
thin, n flat and elongated particle is defined as a particle having a
maximum dimension greater than five (5) times the minimum dimension.
Aggregate shall not be manufactured from rock which is subject to
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele 4001/07/30: CIA-RDP78-05613AO0'03 O02-7
weathering or disintegration when exposed to air or moisture nor from
rock containing opaline or other active manerals.
(2) Coarse and fine.aggre ate: Coarse (Type I & v)
and fine (Type II & III aggregate shall be well graded from fine to
coarse and shall be within the grading limits shown in the following
table:
Table of Grading Limits
Screen Sizes Percent by Weight Passing
_(Inches) Type I Type II Type III # Type V
2 ... ]00
1-1/2 ... 95-100
1 ... 20- 55 .....:.......................,4. 100
3/4 ... 0- 15 ....: 95-100
1 2 ...? ..........................
3/8 0- ......
No.4 ...................95-100 .................... 0- 15
No.8 ....... .... . 5
? .65- 90 .....,... 100 ...... 0-
No..6 ................... 45- 70 ......95-100 ............
No.30 ...................25- 45 ..40- 70 ...
No.50 ...................10- 20 .......25- 40 .........
No.100 .................. 2- 8 ....... 0- 25 .. ..........
No-200 ...Q.. 2 .... 0- 4 ....... 0- 5 ?......0- 2
# Type IIt aggregates are for mortar and plaster.
d. Anchorage items: Slots and inserts for anchoring
masonry and mechanical items to concrete shall be of standard local
manufacture, of types required to engaged with the anchors to be pro-
vided and installed therein under other sections of these specifications,
and shall be subject to approval.
30-pound.
e. Asphalt-saturated felt: Federal Specification HH-F-191,
f. Cement: Only one brand of cement shall be used for
exposed concrete in-any individual structure. Cement reclaimed from
cleaning bags or leaking container shall not be used. Cement shall be
used in the sequence of receipt of shipment, unless otherwise directed:
Portland cement shall conform to Federal Specification SS-C192b, Type I.
g. Curing materials:
(1) waterproof paper: Federal Specification UU-P-264a.
(2) Mats: Commercial quality of type best suited to the
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele4peNE001/07/30 : CIA-RDP78-05613A0003 O02-7
(3) Burlap: Commercial quality.
h. Forms: Wood, metal, structural hardboard, or other ;
approved material that will not adversely affect the surface of the
concrete and that will produce or facilitate obtaining specified sur-
face finish of the concrete.
(1) Wood-
(a) Unexposed concrete surfaces: No. 2 Common
(b) Exposed concrete surfaces: Dressed-and-matched
boards of uniform thickness, and width not exceeding ~10 inches.
(c) Rubbed or smooth surfaces: Plywood or with
linings as specified below.
(2) Pl- wowoo~~d: Commercial-Standard Luan moisture-
resistant, concrete-form plywood, not less than 5-ply and at least 9/16
inch thick.
(3) Metal Forms: Approved type that will produce
surfaces equal to those specified for wood forms.
(4) Hardboard forms: A hard-pressed fiberboard conform-
ing to Federal Specification LLL-F-311, especially treated for concreteform
use, not less than 1/4-inch thick.
(5) Form lining:
(a) Plywood: Commercial-Standard Luan, concrete-
board having a low degree of water absorptivity, not less than 3/16 inch
thick, with one smooth side.
i. Form Oil: An approved colorless (not darker than ASTM
No.3 in accordance with Method 102.5 of Federal Specification -L-791d)
mineral oil, free from kerosene, with a viscosity of not less than 70 not
more than 110 seconds (Saybolt Universal) at 100 F., except that when used
on hardboard forms the viscosity shall be not less than 250 seconds at 100oF.
Flash point shall be not less than. 300?F. (open cup). Viscosity and flash
point shall be determined in accordance with methods 304.6 and 1103.5,
respectively, of Federal Specification VV-L-791d.
J. Form sealer: Federal Specification TT-W--572.
k. Form ties: Of approved design, fixed or adjustable in
length, free of devices that will leave a hole larger than 7/8 inch in
diameter in surfaces of concrete, and when used where discoloration of
the concrete would be objectionable, metal one inch from the finished
surface,
1. Mesh reinforcement: ASTM Standard A 185-54T. except as
specified otherwise hereinafter. When indicated in slabs on fill, mesh shall
be of the sizes indicated, and gage shall be Americal steel wire gage.
2-03
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For ReleV@pP4001/07/30 : CIA-RDP78-05613A00030 002-7
m. Reinforcement:
(1) Deformed bars: Federal Specification O0_B_71a.
Type B, Grade II, structure grade billet steel, except as otherwise
noted on the drawings. Deformations shall conform to ASTM.
(2) Mill reports: Certified copies of mill reports
shall accompany deliverjes of reinforcing steel, except mesh rein-
forcement.
n. Water shall be clean, fresh and free from injurious
amounts of mineral nd organic substances.
o. Cinders shall be clean and well-burned anthracite
cinders, containing not less than 90 clinkers.
P, Air-entraining agent: Shall be best local product, either
Vinsol or other approved equal brands.
q. white Cement: Shall be conformed to JIS-R-5210.
2-04 SAMPLES AND TESTING:
a. General: Testing of the aggregate, reinforcement, cement
and end items shall be the responsibility of the Owner.
Samples of concrete for strength tests of end items shall be provided and
stored by the Contractor when and as directed.
b. Cement: Cement shall be tested as prescribed in Federal
Specification SS-C-192b, and shall be sampled either at the mill or at the
,site of the work. Tests will be made by or under the supervision of the
Contracting Engineer at the expense of the Owner. No cement shall be used
until notice has been given by the Contracting Engineer that the test re-
sults are satisfactory. Cement which has been stored other than in the bins
at the mills, for more than 4 months, after beinp tested, shall be retested
before use. Ordinarily, no cement shall be used until it has satisfactorily
passed both the 7 and 28-day tests; but in cases of urgency the Contracting
Engineer may waive the 28-day tests and permit the use of cement which has
satisfactorily passed the chemical, soundness and 7 days tests, provided it
is the product of a quarry and mill which have established a reputation of
not less than 3 years, standing for the production of high-grade cement.
Any cement delivered at the site of the work and later found under tests
to be unsuitable shall be removed from the work and its vicinity.
c. Aggregate: ~ggregate shall be to ted as prescribed in
Federal specification 3S-.A-28lb. In addition, fine,. aggregate shall be
tested for organic impurities in conformance with ASTM Standard C 40-48.
d. Reinforcement: Reinforcing bars shall be tested as
prescribed in Federal Specification on,_B-71a. Mesh reinforcement shall
be tested as prescribed in ASTM Standard A 185-54T.
2-04
Approved For Release 2001/07/30 : CIA-RDP78-05613A000.300060002-7
 Approved For Rel x4001/07/30: CIA-RDP78-05613A0003 O02-7
e. Concrete:
(1) Strength tests during the work: The Contractor shall
provide for test purposes one set of three cylinders taken from each 250 cubic
yards or fraction thereof, or each dayts pour, whichever is less, of each class
of concrete placed. Test specimens shall be made and cured in accordance with
ASTM Standard C 31-55. Specimens shall be cured under laboratory conditions
except that the Contracting Engineer may require curing under field conditions.
Cylinders shall be tested in accordance with ASTM Standard C39-49. The test
result shall be the average of the strengths of the three cylinders, except
that if one specimen in a test shows manifest evidence of improper sampling,
molding or testing, the test result shall be the average of the remaining two
specimens. If two specimens show such defects, the test shall be discarded.
The standard age of tests shall be 28 days, but 7 day tests may be used, with
the permission of the Contracting Engineer, provided that the relation between
the 7 day and 28 day strengths of the concrete is established by tests for the
materials and proportions used. If the average of the strength tests of the
laboratory control specimens for. any portion of the work falls below the minimum
allowable compressive strength at 28 days required for the class of concrete
used in that portion, the Contracting Officer shall have the right to order a
change in the proportions of the concrete, or both, for the remaining portions
of the work, at the Contractor! s expenses. If the average strength of the
specimens sured on the Job falls below the minimum allowable strength, the
Contracting Engineer may require changes in the conditions of temperature and
moisture necessary to secure the required strength.
(2) Tests of hardened concrete in, or removed from, the
,Structure-. Where there is question as to the quality of the concrete in the
structure, the Contracting Engineer may required tests in accordance with
ASTM Standard C 42-45 or other load tests for that portion of the structure
where the questionable concrete has been placed. When required, the load tests
shall be made, at the Contractors expense, in accordance with section 202 of
the &CI Building Code (ACI 318). In the event that load tests indicate that
concrete placed does not conform to the drawings and these specifications,
metasures as prescribed by the Contracting Engineer shall be taken to correct
the deficiency at no additional cost to the Owner.
2-05 STORAGE:
a. General: Storage accommodations shall be subject to
approval and shall afford easy access for inspection and identification of
each shipment in accordance with test reports.
b. Cement: Immediately upon receipt at site of work, cement
shall be store in a dry weathertight, properly ventilated structure, with
adequate provision for preventrtion of absorption ofaDisture.
C. A re ate: Storage piles of aggregate shall afford good
drainage, preclude inc usionno.f foreign matter, and preserve the:grada.tion.
2-85
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Relei 001/07/30 : CIA-RDP78-05613A000306Q OO2-7
Sufficient live,or^ ge shall be maintained to permit seggregation of successive
shipments, placement of concrete at required rates, and such procedures as
heating, inspection and testing.
2-06 'TUIi S
a. General: Forms, complete with centering cores and molds,
shall be constructed to conform to shape, form, line and grade required, and
shall be maintained sufficiently rigid to prevent deformation under load..
studs shall be spaced sufficiently close to prevent deflection of form
material and consequent waviness in surfaces of concrete.
B. Design: Joints shall be leakproof and shall be arranged
vertically or horizontallto conform to the pattern of design. Forms
placed on successive units for continuous surfaces shall be fitted to
accurate alignment to assure a smooth completed surface free from irre-
gulatrities.. In spans where intermediate supports are not possible, the
anticipated deflection-in the forms due to weight of fresh concrete shall
be accurately figured and taken into account in-the design of the forms, so
that finished concrete members will have true surfaces conforming accurately
to desired lines, planes and elevations.. If adequate foundation for shores
cannot be secured, trussed supports shall be provided.. Temporary openings
shall be arranged in wall and column forms and where otherwise required to
facilitate cleaning and inspection.. Lumber once used in forms shall have
nails withdrawn and surfaces to be exposed to concrete carefully cleaned
before reuse. Forms shall be readily removable without hammering or prying
against the concrete.
c. Form Ties shall be of suitable design and adequate
strength for the purpose.. ;;ire ties will not be permitted where discolora-
tion of the finished surface would be objectionable.. Bolts and rods which
are to be completely withdrawn shall be coated with grease..
d. Joints: Corners of columns, girders and beams and
other exposed joints in more than one plane, unless otherwise indicated on
the drawings or directed, shall be beveled, rounded or chamfered by moldings
placed in the forms..
e. Costing: Forms for exposed surfaces shall be coated
with oil before reinforcement is placed. Surplus oil on form surfaces and
any oil on reinforceing steel shall be removed. Forms for surfaces not
exposed to view or normal weathering may be thoroughly wet with water in
lieu of oiling immediately before placing of concrete. Wood forms for con-
crete that is to be painted shall be coated with sealer instead of with oil
or water. Sealer shall be a water-repellant wood preservative conforming
to Federal Specification TT-W-572.
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rel 001/07/30: CIA-RDP78-05613A0003 O02-7
f. Removal: Forms shall be removed only with approval of
the Contracting Engineer and in a manner to insure complete safety of the
structure after the following conditions have been met. ?,,,There the structure
as a whole is supported on shores, the beam and girder sides, columns and
similar vertical forms may be removed after 24 hours,. provided concrete is
sufficiently hard not to be injured thereby. Supporting forms or shoring
shall to support safety their weight and any construction and/or storage
load to which they may be subjected but in no case shall they be removed
in less than 6 days, nor shall forms used for curing be removed before
expiration of curing period except as hereinafter provided under curing.
Care shall be taken to avoid spalling the concrete surface. wood forms a
shall be removed completely from under steps and similar dead spaces,
.thorough temporary opening if necessary.
(1) Control tests: Results of suitable control tests
will be used as evidence that concrete has attained sufficient strength to
permit removal of supporting forms. Cylinders required for control tests
shall be provided in addition to those otherwise required by this specifica-
tion. Test specimens shall be removed from molds at the end of 24 hours and
stored in the structure as near points of sampling as possible, shall receive
insofar as practicable the same protection from the elements during curing as
is given these portions of the sturcture which they represent, and shall not
be removed from the structure for transmittal to the laboratory prior to
expiration of three-fourths of the proposed period before removal of forms.
In general, supporting forms or shoring shall not be removed until strength
of control-test specimens has attained a value of at least 1,500 pounds for
columns and 2,000 pounds for all other work. Care must be exercised to assure
that the newly unsupported portions of the structure are not subjected to
heavy construction or material loading.
(2) lamps: Tie-rod clamps to be removed entirely
from the wall shall be loosened 24 hours after concrete is placed, and form
ties, except for a sufficient number to hold forms in pace, may be removed
at that time. Ties wholly withdrawn from walls shall be pulled toward
inside face.
(3) Filling tie-rod or bolt holes: Holes left by bolts
or tie rods shall be filled soled within hours after removal of forms,
with cement mortar blended to match adjacent surface, .;Holes passing entirely
through walls shall be filled from inside faces, using a stops held at the
cutside wall surface to insure complete filling. Holes which do not pass
entirely through walls shall be packed full. Excess mortar at faces of
filled holes shall be struck off flush.
2-07 REINFORCING STEEL:
a. General: Reinforcing steel, fabricated to shapes and
dimensions shown, shall be placed where indicated on the drawings or required
to carry out the intent of drawings and specifications. Before being placed,
2 - 07
Approved' For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele 2001/07/30 : CIA-RDP78-05613A000 Q002-7
reinforcement shall be thoroughly cleaned of rust, mill scale or coating that
would reduce or destory the bond. 'reinforcement reduced in section shall not
be .used. Following any substantial delay in the work, previously placed
reinforcement left for future bonding shall be inspected and cleaned.
Reinforcement shall not be sent or straightened in a manner injurious to
the material. Bars with kinds or bends not shown on drawings shall not
be placed. The heating of reinforcement for bending or straightening will
be permitted only if the entire operation is approved by the Contracting
Engineer. In slabs, beams and girders, reinforcement shall not be spliced
at points of maximum stress. Laps or splices shall be of adequate length
to transmit stresses and, unless otherwise indicated, shall conform to the
table in ACI 315-21. Splices in adjacent bars shall be staggered. Splicers
in columns, piers and struts shall be lapped sufficiently to transfer the
full stress by bond.
b. Design and details: Unless otherwise indicated on the
drawings, the design of reinforced concrete structaures shall conform to ACI
318-56 and the details of reinforcing steel shall conform to ACI 315-48.
Unless otherwise shown or specified, construction shall conform to the
following requirements:
(1) Concrete covering over steel reinforcement shall
be not less than the following thicknesses:
Footings and other principal structural members in
which concrete is deposited against the
ground . . . . . . 3 inches between steel and ground
Where concrete surfaces, after removal of forms,
are exposed to weather or ground:
For bars more than 5/8 inch in diameter . . . 2 inches
For bar 5/8 inch or less in diameter l2 inches
where surfaces are not directly exposed to weather
or ground:
For slabs and walls . . . . . . . . . . . 3/4 inch
For beams, girders, a.nd tied columns . . . 12 inches
All covering . . . . . . . . . . . . Equal to diam.
of round bars.
Exposed reinforcement bars intended for bonding with future extensions shall
be protected from corrosion by concrete or other adequate covering,
(2) Stirrup spacer bars: fill stirrups, except ties,
shall be held in place by two 3 8-inch spacer bars extending full length of
that portion of the beam or girder occupied by stirrups.
(3) Shop drawings: Shop details and placing drawings
for all reinforcing steel shall be furnished for approval.
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rel 2001/07/30: CIA-RDP78-05613A000"! *W0002-7
c. Supports: With the exception of temperature reinforce-
ment which shall be tied to main steel approximately 24 inches in center,
reinforcement shall be accurately placed and securely tied at all inter-
sections and splices with 18-gage black annealed wire, and shall be securely
held in position during the placing of concrete by spacers, chairs or other
approved supports. wire-tie ends shall point away from the form. Unless
otherwise indicated on the drawings or specified, the number, type and spac-
ing of supports shall conform to the ACI Detailing manual (ACI 315-21).
2-08 CLASS OF CONCRETE AND US:^GE:
a. Strength recauirements: Concrete required shall be pro-
portioned and mixed for the following strength:
Class of Minimum allowable compressive
concrete Strength at 28 Days
2,500 psi All reinforced concrete
2,000 psi All plain concrete
b. Cinder concrete shall be 1 part Portland cement ASTN
C-150, Type II, 2 parts sand, and 5 Parts cinders.
2-09 PROPORTIONING OF CONCRETE MIXES:
General: Concrete shall be proportioned by weight.
(1) Cement: A one-cubic-foot bag of Portland cement
will be considered as 94 pounds in weight. In determing the approved mix,
Portland cement will be used alond as the cementitious material.
8.33 pounds,
(2) Water: One gallon of water will be considered as
(3) Aggregate: Fine and coarse aggregate shall be
measured by weight in accordance with Federal Specification Ali A-281b.
Coarse aggregate shall be used in the greatest amount consistent with
required workability.
(4) AE Agent (Air-entruning Agent): Shall be mixed
with concrete at an amount in various with the-required strength of the
concrete and in accordance with the instructions given by the manufacturer.
c. Corrective additions to remedy deficiencies in aggregate
gradations shall be used only with the written approval of the Contracting
Engineer. When such additions are permitted, the material shall be measured
separately foreach batch of concrete.
2 - 09
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele!1001/07/30 : CIA-RDP78-05613A0003002-7
d. Control: The design of concrete mixture, to meet
strength requirements of the class or classes of concrete specified, shall
be the responsibility of the Contractor. No substitutions shall be made
in the materials used in the work without the approval of the Contracting
Engineer. Average cement content and maximum water per bag of cement shall
be as follows:
Average Cement Content Maximum Gal of Water
Class of Concrete Bage of Cement per Cubic Yard Per Bag of Cement
A
2500 pounds per
square inch 5.0 6.75
B
2000 pounds per
square inch 4.5 7.50
(1) Slump test: Consistency will be determined by
the slump test. The slump shall be 3 inches minimum and 3 inches maximum
for vibrated concrete. When placing of concrete without vibration is
approved, slump shall be from'3 to 6 inches.
(2) Mix proportions: Preliminary mix proportions will
be furnished the Contracting Engineer by the Contractor before start of
operations. Adjustment will be made by the Contracting Engineer, as required,
to determine final proportions which will best satisfy job requirements and
use of materials. Subsequent adjustment in these final mix proportions
shall be made by the Contracting Engineer as required to compensate for
variations in the gradation and moisture content of the aggregates.
Necessary revisions in water-cement ratio and concrete mix proportions
shall be made as directed.
(3) Workability: The consistency of the misture will
be that required for the specific conditions and methods of placement. The
slump shall not exceed that specified above.
(4) Strength tests: The Contracting Engineer will
determine the strength of the concrete in the completed work during the
progress of construction by test specimens mode, cured and tested as
specified herein under SAMPLES AND TESTING. Modifications of the design
mix, if required, will be made by the Contracting Officer on the basis
of the strength of these test specimens. There will be no additional
compensation for changing the proportions of the mix to overcome field
and aggregate deficiencies or to obtain the specified and characteristics
of the concrete. Adjustment in payment will be made for cement more or
less that the average bags per cubic yard specified hereinbefore for a
given mix.
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele 2001/07/30 : CIA-RDP78-05613A0003DOW002-7
2-10 MATCHING AND. MIXING:
a. Pe of plant: The batching plant and mixing equipment
shall be as approved by the Contracting Engineer. Either a manual of a
semi-automatic plant may be used, subject to the approval of the Contracting
i
Eng
neer. A manual plant is defined as one in which batch weights are set
manually and materials are batched manually. A semi-automatic plant is
defined as one in which hatching weights are setr:manu .lly, mixes are changed
manually, and materials are batched automatically.
b. Batching plant-
on-site or off-site.
(2) Arrangement: Separate bins or compartments shall
be provided for fine aggregate, or the different sizes of coarse aggregate,
and for bulk cements when used. The compartments shall be of ample size
and so constructed that the materials will remain separate under all working
conditions. Aggregates may be weighed cumulatively in one weigh batcher
on one seals in a manual plant and in a semi-automatic plant may be weighed
cumulatively in one weigh batcher on one scale or in separate weigh batchers
with individual scales. In a semi-automatic plant, bulk cement shall be
weighed on a separate scale in a separate weigh batcher. In a manual plant
bulk cement shall be weighed in a separate hopper which may be attached to
a separate scale for individual weighing or may be attached to the aggregate
hopper for cumulative weighing, provided there are separate beams or dials
for cement and aggregates. If cement is weighed on the same scale as the
aggregates the cement shall be weighed first and an interlock shall be
provided to insure that all hoppers are empty and that the scale is in
balance before the weighing of the cement begun. Water may be measured by
weight or by volume. In a semi-automatic plant, the batching controls shall
be so interlocked that a new batching cycle cannot be, started until all
batchers are completely empty. The plant shall be so arranged as to
facilitate the inspection of all operations at all times. Suitable
facilities shall be provided for obtaining representative samples of
concrete for uniformity tests. Delivery of materials from the batching
equipment shall be within the following limits of accuracy:
Cement . . . . . . . . . . 1 percent
Water .......... 1 Percent
Aggregate . . . . . . . 2 percent
(3) Water batcher: Equipment for batching water
shall be provided at the hatching plant or included with the mixer, as
required for the type or plant used. A suitable water-measuring device
shall be provided which will be capable of measuring the mixing water
within the specified requirements for each batch. The machanism for
delivering water to the mixers shall be such that leakage will not occur
zi?J n a 2 - 11
(1) Location: The batching plant may be located
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Releg#2001/07/30 : CIA-RDP78-05613A000002-7
when the valves are closed. The filling and discharge valves for the water
batcher shall be so interlocked that the discharge valve cannot be opened
before the filling valve is fully closed.
(4) Moisture control: A semi-automatic plant shall
be capable of ready adjustment for the varying moisture contents of the
aggregates and to change the weights of the materials being batched.
(5) Scales: Adequate facilities shall be provided
for the accurate measurement and control of each of the materials entering
each batch of concrete. The Contractor shall provide standard test
weights and any other auxiliary equipment required for the operation of
each scale or other measuring device. Periodic tests shall be made in
the presence of a Contracting Engineer in such manner and at such intervals
as may be directed.
c. Concrete mixers may be stationary mixers, or paving
mixers of approved design. The mixers shall have a rated capacity of a
least 14 cubic feet of mixed concrete and shall not be charged in excess
of the capacity recommended by the Manufacturer. Mixers shall be capable
of combining the materials into a uniform mixture and of discharging this
mixture without segregation. Stationary and paving mixers shall be provided
with an acceptable device to lock the discharge mechanism until the
regiired mixing time has elapsed. The mixers or mixing plant shall include
a device for automatically counting the total number of batches of concrete
mixed. The mixers shall be operated at the drum speed designated by the
manufacturer on the name plate. The mixing periods specified herein are
predicated on proper control of the speed of rotation of the mixer drum,
and an proper introduction of the materials into the mixer. The mixing
time will be increased when such increase is necessary to secure the
required uniformaty and consistency of the concrete, or when test samples
of concrete taken from the front, center and back of the mixer show a
difference of more than 10 percent in sand-cement or water-cement ratio.
Excessive over-mixing requiring a additions of water will not be permitted.
The mixers shall be maintained in satisfactory operating condition, and
mixer drums shall be kept free of hardened concrete. Mixer blades shall
be replaced when worn down more than 10 percent of their depth. Should
any mixer at any time produce unsatisf ~.ctory results, its use shall be
promptly discontinued until it is repaired.
(1) Stationary mixers: The mixing time for each batch,
after all solid materials are in the mixer drum and provided that all of
the mixing water is introduced before one-fourth of the mixing time has
elapsed, shall be not less than 1 minute for mixers h?,ving a capacity of
1 cubic yard; for mixers of larger capacities, the minimum mixing time shall
be increased 15 seconds for each addition 1-1/2 cubic yard or fraction
thereof of additional concrete mixed. when a stationary mixer is used for
partial mixing of the concrete (shrink-mixed) the mixing time in the
stationary mixer may be reduced to the minimum necessary to intermingle
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele%#d2001/07/30 : CIA-RDP78-05613A0003W#W002-7
the ingredients (about 30 seconds).
2-11 PRA PAR,ATION FOR PLACING:
Water shall be removed before concrete is deposited. Any
flow of water shall be diverted through proper side drains and shall be
removed without washing over freshly deposited concrete. Hardened concrete,
debris and foreign materials shall be removed from interior of forms and
from inner surfaces of mixing and conveying equipment. Reinforcement shall
be secured in position, inspected and approved before curing of concrete.
Runways shall be provided for wheeled concrete-handling equipment; such
equipment shall not be wheeled over reinforcement nor shall runways be
supported on reinforcement.
2-12 PLACING CONCRETE:
a. General: No concrete shall be placed in final position
except in the presence of a Contracting Engineer. The use of bait conveyors,
chutes or similar equipment will not be permitted without written approval.
Concrete shall be handled from mixer or transport vehicle to place of final
deposit in a continuous manner, as rapidly as practicable, and, without
segregation or loss of ingredients until the approved unit of operation is
completed. Concrete that has attained its initial set or has contained its
mixing water for more than 45 minutes shall not be placed in the work.
Placing will not be permitted when, in the opinion of the Contracting Engineer,
the sun, heat, wind or limitations of facilities furnished by the contractor
prevent proper finishing and curing of the concrete. Forms or reinforcement
shall not be splashed with concrete in advance of pouring. Concrete shall
be placed in the forms as nearly as practicable in final position. Immediately
after placing, concrete shall be compacted by thoroughly agitating in an
approved manner. Tapping or other external vibration of forms will not be
permitted. Concrete shall not be placed on concrete sufficiently hard
to cause formation of seams and planes of weakness within the section.
Concrete shall not be allowed to drop freely more than 5 feet in unexposed
work nor more than 3 feet in exposed work.. Concrete be receive other construc-
tion shall be screeded to the proper level to avoid excessive shimming or
grounting.
2-13 COMPhCTION:
Concrete shall be compacted by mechanical internal-vibrating
equipment supplemented by hand-spading, rodding and tamping as directed.
Vibrators shall in no case be used to transport concrete inside forms.
Use of form vibrators will not be permitted. Internal vibrators shall
maintain a speed of not less than 5,000 impulse per minute when submerged
in the concrete. At least one spare vibrator or sufficient parts for
repairing vibrators shall be maintained at the site of all times. Duration
2 - 13
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Reld&pW2001/07/30 : CIA-RDP78-05613A000390WO02-7
of vibration shall be limited to time necessary to produce satisfactory
consolidation without causing objectionable segregation and shall be at
least 20 seconds per square foot of exposed surface. The vibrator shall
not be inserted into lower courses that have begun to set. Where
absorptive form lining is used, the vibrator shall not be placed
between the forms and the outer row of reinforcement, and in no case
shall the vibrator be allowed to tough the absorptive form lining.
Vibrators shall be applied at uniformly spaced points not farther apart
than the visible effectiveness of the mashine.
2-14 BONDING AND GROUTING:
Before depositing new concrete on or against concrete
that has set, existing surfaces shall be thoroughly roughened and cleaned
of laitance, foreign matter and loose particles. Forms shall be
retightened and existing surfaces slushed with a grout coat of neat
cement. New concrete shall be placed before the grout has attained
initial set. Horizontal construction joints shall be given a brush
coat of grout consisting of cement and fire aggregate in the same pr
o-
portion, a s concrete to be placed, followed by approximately 3 inches of
concrete of regular mix except that the proportion of coarse aggregate
shall be reduced 50 percent. Grout for setting column bases, wall
plates and other metal items shall be composed of equal parts of sand
and Portland cement, with water sufficient to produce required
consistency.
2-15 FINISHES OF CONCRETE
a. General: Immediately after removal of the forms all
fins and loose material shall be removed; honeycomb, aggregate pockets,
voids and holes over 1/2 inch in diameter shall be cut out to solid
concrete, thoroughly wetted, brush-coated with neat cement grout, and
filled with cement mortar composed of 1 part cement to 2 parts fine
aggregate. Mortar shall. be placed in layers as required, with each layer
being thoroughly compacted in places. The final layer shall be finished
flush and in the same plane as adjacemt surfaces. Patch work shall be
damp cured for 72 hours. Exposed patch work shall be rebbed or otherwise
treated to match adjacent surfaces.
b. Smooth finish shall, in addition to the above, be
given to all concrete surfaces throughout the interior and exterior of
the structure, which are exposed to view in finished work or are to be
pointed. Smooth finish shall consist in thoroughly wettings and then
brush-coating the surfaces with cement grout composed of 1 part cement to
2 parts fine aggregate (by volume) mixed with water to the consistency of
thick paint. Grout shall be cork or wood floated to fill all pits, air
bubbles, and surface holes. Excess grout shall be scraped off with a
trowel and the surface rubbed with burlap to remove any visible grout film.
2-14
11
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Relegy402001/07/30 : CIA-RDP78-05613A0003 002-7
In hot, dry weather, the grout shall be kept damp by means of fog spray
during the setting period. The finish for any area shall be completed
in the same day and the limits of a finished area shall be made at
natural breaks in the finished surface..
C. Slabs receiving terrazzo finish: The slabs shall be
finished to tamping the concrete with special tools, then screeding
with straight edges and floating to present a reasonably true and uniform
surface, at an elevation sufficiently below the finished surface elevation,
as indicated on the drawings, so that when the terrazzo is poured, the
finished surface of the terrazzo will be at the elevation indicated
on the drawings. The slabe shall be wood troweled finished to provide
adequate bonding surface.
2-16 CURING:
a. General: Curing shall be accomplished by preventing
loss of moisture, repid temperature change and mechanical injury or
injury from rain or flowing water for a period of 7 days when normal
Portland cement has been used, or 3 day when high-early-strength
portland cement has been used. Curing shall be started as soon after
placing and finishing as free water has disappeared from the surface
of the concrete. Curing of formed undersurfaces shall be accomplished
by moist curing with forms in place for the full curing period, or,
if forms are removed prior to the end of the curing period, by other
means Approved by the Contracting Engineer.
b. Moist curing: Unformed surfaces shall be covered with
burlap, cotton or other approved fabric mats, or with sand, and shall
be kept continually wet. Forms shall be kept continually wet and if
removed before the end of the curing period, curing shall be continued
as on unformed surfaces. Using suitable materials. Burlap shall be
used only on surfaces which will be unexposed in the finished work and
shall be in two layers.
2
- 15
Approved For Release 2001/07/30 :
CIA-RDP78-05613A000300060002-7
 Approved For Rel 1+'2001/07/30: CIA-RDP78-05613A000 0002-7
SECTION 3
3-01 scOPE:
The work covered by this section of the specifications
consists in furnishing all plant, labor, equipment, appliances and
materials and in performing all operations in connection with the
installation of masonry, complete, in strict accordance with this
section of the specifications and the applicable drawings, and subject
to the terms and conditions of the contract.
3-02 MATEE,IALS:
a. General: quality requirements for materials listed
herein are based on U.S. Federal Specifications. However, the use
of products of reputable ' manufacturers is intended where 25X1A
equivalent to the materials specified, subject to the approval of
the Contracting Engineer.
b. Anchors and ties: Heavily galvanized metal of standard
types, subject to approval by the Contracting Engineer; furnish and install
as required.
C. Lime: Federal Specification SS-L-351, type M or F,
SS-L-351, type C, pulverized with the further requirement that the
total free (unhydrated) calcium oxide (CaO) end magnesium oxide (MgO)
in the hydrated produce shall not exceed 8 percent by weight, calcu-
lated on the "as received" basis.
d. Reinforcement:
(1) Horizontal reinforcement shall be of electrically
welded steel wire not less than No. 8 gage of design shown on drawings.
(2) Vertical reinforcing shall be deformed bars as
specified under Section 2, CONCRETE.
e. Sand: ASTM Specification C 144-44
f. Water: Clean and free from injurious amounts of oil,.
acids, soluble salts, and organic impurities.
Type I.
g. Cement:
(1) Portland cement: Federal Specification SS-C-192,
3-01
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rel 2001/07/30: CIA-RDP78-05613A000 0002-7
h,. Common clay brick: All clay brick shall be best quality,
well burned local common red brick, riot less than 211 x 9" x.411., No under-
sized brick, broken brick, brick with spawls or fissures will be allowed.
All brick rejected by the Contracting Officer shall b-~ promptly removed
from the site.
3-03 SAMPLES:
Before delivery of any material to the site, submit the
following samples to Contracting Officer for approval:
Common clay brick . . . . . . . . . . 12 units
3-04 HANDLING AND STORAGE:
a. All clay brick shall be handles in such manner as to
prevent undue chipping and brekae. Storage piles, stacks or bins shall
be so located as to avoid being disturbed or shall be barricaded to
protect the materials from damage by construction operation.
b. Cement lime and any admixture materials, immediately
upon delivery to the site, shall be stored in weatherproof sheds, or
upon platforms raised free of the ground and effectively protected by
tarpaulin covers from exposure to the.weather until used. No cementi-
tious or other material that has become caked and hardened from
absorption of moisture will be permitted in the work. Bagged cement
stored for more than 2 months shall be approved by the Contracting
Officer before using,
3-05 PREPAPATION AND STORAGE OF LIME PUTTY:
Lime putty shall be made from hydrated lime, or pulverized
quick-lime mixed with water to form a stiff, plastic putty. Putty made
of hydrated lime, must be stored for more than 24 hours before use in
the mortar mix, and precautions taken to protect it from excessive
evaporation. Putty made from quicklime shall be passed through a No. 10
sieve and stored for 72 hours prior to use. Store in a manner to prevent
undue loss of moisture of heat during slaking period,
3-06 MORTAR MIX NG AND PROPORTIONING:
a. General: Use approved type batch mechanical mixer,
except that when approved by Contracting Engineer, mortar may be mixed
by hand. 1-Mixing time shall be not less than 5 minutes, approximately
2 minutes of which shall be for the mixing of dry materials. Hand-
mixing shall be done in a tight mortar-mixing box.
3 - 02
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele 2001/07/30: CIA-RDP78-05613A0003D ~,j(,pO2-7
b. Proportioning: Mortar shall be
within the following limit:
Proportioned by volume
1ortar Hydrated Lime or
A^gregate.
Strength Portland Lime Putty _ (Damp qnd Loose)
psi) Cement Minimum Maximum Minimum Maximum
1,500 1 1/3 1/2 3-1/4
The cement content specified is the minimum. Where the fine aggregate
which is locally available or readily obtainable does not produce the
specified compressive strength but is in rill other respects satis-
factory, the fine aggregate content shall be decreased to the extent
required to obtain that strength with related density, bonding value
and other properties.
C. Measurement: The method of measuring materials for
mortar shall be such that the specified proportion of the materials
can be controlled and accurately maintained. The weights per cubic
foot of the materials shall be considered as follows:
Material weight per Cubit Foot
(pound)
Portland cement . . . . . . . . 94
Hydrated lime . . . . 40
Quicklime putty . . . . . . . . 80 (minimum)
Hydrated lime putty . . . . . . 80
Fine aggregate (dry) . . . . . . 80
Fine aggregate (damp) . . . . . . 85
3-07 TR?,CTION:
a. General: Shall be wetted and allowed to drain and
then laid in cement mortar in British bond. All brick shall be laid
in full mortar beds with vertical joints slushed full.
b. All brick work shall be laid so as to point to
the exterior of the structures in order to provide for a clean and
uniform exterior surface.
3 - 03
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 41
Approved For Religpd 2001/07/30: CIA-RDP78-05613A000 0002-7
SECTION 4
4-01 SCOPE:
The work covered by this section of the specifications
consists in furnishing all plant, labor, equipment, appliances and materials
and in performing all operation in connection with the installation of
carpentry, complete, in strict accordance with this section of the
specifications and the applicable drawings, and subject to the terms and
conditions of the contract.
4-02 MATERIALS:
a. General: nuality requirements for materials listed
herein are based on U.S. Federal Specifications. However, the use of
products of reputable ~ manufacturers is intended where equivalent
to the materials specified, subject to the approval of the Contracting
Officer.
b. Lumber shall conform to the requirements of Federal
Specifications MM-L-736 ,nd MM-L-751. Any of the ,umber of the
species listed below, or lumber of species equivalent of the
species specified, may be substituted if possessing characteristics as
set forth in the applicable grading rules listed in Federal Specifications
MM-L-736 and MM-L-551, and if approved by the Contracting Officer. All
lumber must be termite treated.
(1) Bucks, frames: yard Lumber of the grades indicated:
. . . . . . . . . . lst Grade
(2) Interior trim, shelving and miscellaneous finish:
Factory clean Lumber of Select Yard Lumber of the grades indicated:
(3)
. . 1st Grade
? lst Grade
(4) Door (plywood and plywood finish): M lst
Grade, use same species throughout.
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele4W01/07/30 : CIA-RDP78-05613A0003002-7
c.: Plywood shall conform to Federal specification NN-P-530
with face veneers as hereinafter specified. 3/5 or 1/2-inch plywood
shall have not less than 5 piles, 3/4 inch plywood not less than 7 plies
and 1 inch plywood not less than 9 piles.
d. Bolts and nuts shall conform to the requirements of
Federal Specification FF-B577ununless otherwise approved by the
Contracting officer.
e. Calking compound shall conform to the requirements of
Federal Specification TT7C-597, ,GGrrade I, for gun application wherever
practicable.
f. Clamps, expansion bolts, expansion screws, washers
and anchors shall be of steel and iron and of standard type and
manufacture,
g. Glue shall be case in type and shall conform to the
requirements of Fede -Specification MN-A-125.
h. Lag screws shall conform to the requirements of Federal
Specification FF-B-5 , unless otherwise approved by the Contracting
Officer.
i. Nails shall conform to the requirements of Federal
Specification F-N-lT5 or may be the drive-screw or spiral type of
standard manufacture.
J. Steel plates and shapes: Items involving steel plates
and shapes shall be made of steel conforming to the requirements of
Federal Specification or-S-741, of the type, grade and class normally
used in commercial practice.
k. Steel sheets shall conform to Federal Specification
yn-#-636, either hot or cold-rolled, and of the class, condition and
finish best suited for the purpose.
1. White lead paste shall conform to the requirements of
Federal Specification FF-S- , un ess otherwise approved by the
Contracting Officer.
M. Acoustical Units shall be of incombustable com position
manufactured from compressed cane fiber. Products of a reputable
25X1A ~ manufacturer may be used, subject to the approval of the Contracting
Officer. Tile shall be of uniform size and thickness, 1211 x 1/21- and
shall be perforated with beveled edges. Exposed surfaces shall be factory
finished with white wash.
4 - 02
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Releas? 2001/07/30 : CIA-RDP78-05613A00Q40'0060002-7
n. Nails for acoustical units shall be galvanized or zinc
coated after manufacture. Fails shall be of sufficient length to securely
hold the units in place when countersunk into the perforations as detailed
on the drawings.
o. Plastic costed insect metal screens shall be 18 x 18
mesh. Metal screen cloth sha conform to Federal Specification RR-S-111,
type II, III to VII, regular wire size, green color.
P. Sashseal: _ Sashseal or approved equal. 25X1A
4-03 LVM5ER:
a. Grading: Grading of lumber of the various species
shall conform to the requirements of Federal Specifications MM-L-746
and MM-L-751, or conform to the grading rules cited in these speci-
fications, Specific requirements for each lumber grade shall be on
the basis of density, strength, ring count, number and extensiveness
of checks, shakes, splits, knots and gun pockets, amount of wane,
cross-granularity, decay, stains and other surface imeerfections.
The general requirements for lumber grades are here outlined for
guidance only, and are not to be construed as being determinant.
(1) Structural grade: Lumber of structural sizes
and shape, graded with respect to its strength.
(2) Yard lumber: Lumber classified into sizes, shapes
and qualities required for ordinary construction and general purpose
use.
finishing qualities.
(a) Select: Lumber of good appearance and
lst Grade: Suitable for natural finishes -
practically clear.
(b) Common: Lumber not of finishing quality,
but suitable for general utility and construction purposes;
1st Grade: Sound, tight-knotted and
water-tight.
2nd Grade: Same general character as No.1,
but less restricted in quality.
(3) Factory clear lumber, Grade Nos. 1 and 2: Lumber
grades with reference to its use fortrim, molding and other cuttings.
The upper grades containing a high percentage of best quality cuttings -
practically clear in wide sizes.
4-03
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele~ OO1`/07/30 CIA-RDP78-05613A0003d 002-7
b. Size and Pattern: Lumber shall be surfaced four sides
and the dressed sizes of yard and structural lumber shall conform to
the net sizes shown on the drawings. Lumber shall be worked to such
patterns as are indicated on the drawings or specified,
c. Moisture control: Boards and structural lumber not
over 2 inches in nominal thicIo ess to be incorporated in the structure,
except finish material, shall be air-dried. Moisture content will be
established by the Contracting Officer.
d. Storage: Lumber delivered to the site shall be care-
fully piled off the ground in such manner as to insure proper drainage,
ventilation and protection from the weather.
4-04 ANCHOR ? :
Anchors shall be installed, where specified or shown on the
drawings, to anchor carpentry to masonry or concrete. Rough bucks and
frames for doors, windows and louvers shall be anchored with straps in
masonry and anchor bolts in concrete. Strap shall be 3/16 by 1~1 inches,
turned up 2 inches at ends. Bolts shall be 5/8-inch and bent as shown.
Anchors shall extend not less than 8 inches into concrete, and 12 inches
into concrete blocks. Anchors shall be placed near top and bottom of
items and not over 3 feet on centers intermediately.
4-05 MISCELLAMEOUS ITEMS:
Contractor shall furnish and install all miscellaneous
items of rough and finish carpentry, not specifically mentioned
in this section of the specifications, but shown on the drawings
or required to complete the work. All items shall be constructed
as indicated on the drawings and of the best quality or workmanship
as accepted in the trade.
4-06 sA,,mL ES
Samples of the following materials shall be delivered to the
Contracting Engineer for test and approval before delivery to the site:
Calking compound
Gl
2 pounds
ue
il
1 pint each type
Na
s, bolts, screws and
other anchorages
flo
r
2 of each kind
o
s
Pl
d
1 of each type
ywoo
(each kind)
T
t
l sample, 1 foot
rea
ed lumber (each kind)
A
ti
1 piece, 1 foot long
cous
cal tile
3 unit
Acoustical tile nails
s
pound
Plastic coated insect
metal screens
1 piece, 1 , yard long
4 - 04
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rel%VwO2001/07/30 : CIA-RDP78-05613A000 0002-7
4-07 TT?FATMT,NNT :
Treatment shall conform to the requirements of Federal
Specification TT-W-571.. for ""Wood Preservative; Recommended Treating
Pra ctice+".
4-08 iprindow and screen window frames: Frames in wall shall be
made as detailed from the solid stock and shall have three-jamb anchors
on each side. Frames shall be set plumb and square, and secured with
anchors as detailed.
4-09 Acoustical Treatment: Acoustical units shall be secured
by galvanized nails, one nails at each corner of each 12+1 x 12+1 unit.
Nail heads shall be concealed in the perforations, well below the
finished surface of the units. Ceiling units shall be laid out in
a square pattern symmetrical about the center lines of each room,
space or panel. Units shall not of shimed out from ceiling in
order to level them at the proper elevation. Any units requiring
such adjustment shall be entirely removed. During erection, the joints
around electric outlets, pipes and other work extending through the
acoustical treatment shall be sealed tight with plastic calking compound.
Following completion of the acoustical treatment, joints shall be
straight and true to line, and the exposed surface shall be flush and
level. All units shall be tightly butted, and corners shall be full
and without,worn or broken places. Units shall be neatly jointed to
connecting work. The units shall be scribed carefully to the wall at
.the intersection of ceiling and wall line of each room perimeter.
Following erection, all dirty or discolored surfaces of
the acoustical units shall be cleaned and left free from defects. Units
which are damaged or improperly applied shell be removed and, replaced
as directed by the Contracting Officer. One cost of water-base white
paint shall be applied to the surface of all acoustical units after
installation is complete.
4-10 GROUND:
Dressed wood shall be furnished for securing all wood trim
including cabinets and wherever else required. Grounds shall be set
rigid, in perfect alignment and shall be trued with a long straightedge..
Grounds shall be 11 inches wide and of a thickness indicated. Spot
grounds for metal flashing shall be set 12 inches on centers, unless
otherwise indicated on the drawings. All ground shall be treated lumber.
4-11 DOOR BUCKS:
Masonry and concrete walls and partitions having wood
frames shall have bucks of 121 inch dressed material of width equal to
4-05
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele001/07/30 : CIA-RDP78-05613A00031O02-7
thickness of partition or wall, unless otherwise indicated. Bucks
shall be braced, set straight, true and plumb, and secured with
anchors specified hereinbefore.
4-12 DOOR FRAMES:
Frames shall be as shown on the drawings with planted
stops. Frames shall be set plumb and square, and secured with finishing
nails. Double-wedge blocking shall be driven back of jambs at nailing
points, also at backs of butts and lock strikes. where no bucks are
shown wedges shall be tacked lightly to frames, after frames are aligned.
4-13 DOORS
a. General
b. Flush hollow-core doors shall be as indicated on the
standard details. The core shall be constructed of cypress. Stiles shall is.
be fitted together with dovetailed joints or by douels and staples, or by iv
any other approved suitable fastenings. The entire core shall be
assembled with water-resistant glue and dreased to uniform planes and to a
thickness of 1 inch less than the specified thickness of the door.
All reneers shall be waterproofed first grade Luan plywood and be
bonded with water resistant glue applied to all contact surfaces and
the whole door shall be placed in a gluing press which shall apply
uniform pressure over the entire surface of the door. The completed
door shall be sanded smooth on both faces and edges and all comers
shall be rounded to 1/32-inch radius.
c. Screen doors shall be constructed to size and design
shown on the drawings. Joints of stiles and rails shill be properly
formed, tightly fitted, dorvelled, blend-mortised and tenoned, and
glued, stiles and rails shall be rubbeted on side to receive the screen.
The wire screen cloth shall be stretched tant and secured in place.
d. Glass in wood doors shall be of the size indicated on
the drawings. The glass shall be secured to the doors with solid
hardwood moldings.
4-14 INSTALLATION OF DOOR FRAi S:
Doors shall be fitted,. hung and trimmed as hereinafter
specified and as indicated on the drawings. Sashseal shall be used.
wherever it is necessary. Swinging doors shall have 1/16-inch clear-
ance at sides and top, and 3/16-inch clearance over thresholds, unless
otherwise directed by the contracting Officer. Doors in openings
without tresholds shall have 3/0-inch floor clearance. Doors shall
be hung and trimmed with hardware conforming, to the requirements of
4 - 06
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele&01001/07/30 :, CIA-RDP78-05613A0003TQ OO2-7
the section on BUILDERS' TARDW,JARE, All locks with standardized cases
shall be installed at the same height. Knob locks and knob latches
shall have the center of the knob 43 inches above the finished floor.
Cylinder dead lock shall have the center of the cylinder at the same
height as the center of the cylinder of knob locks,
4-15 HARDWARE:
Items of hardware specified in VUILDERS' HARDTrWARD shall
be carefully fitted and securely attached. Care shall be exercised
not to mar or injure existing work, Upon completion of the work
and in the presence of the Contracting Officer, all hardware shall
be demonstrated to work freely, all keys shell be fitted into their
respective locks, and upon acceptance of the work, all keys shall
be tagged and delivered to the Contracting Officer.
4-16 PRIMING :
Millwork, except work to receive stain and natural finish,
shall be primed as specified in PARTING: GENERAL
4-17 INSTALLATION OF THg SCREEN WINDOW
Installation shall include trimming and fitting necessary
tp ale the whole, insect tight.
4 - 07,
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele001/07/30 : CIA-RDP78-05613A0003002-7
SECTION 5
5-01 SCOPE: The work covered by this section of the specifications
consists in furnishing all plant, labor, equipment, appliances, and
materials, and in performing all operations in connection with the
installation of terrazzo, complete, in strict accordance with this
section of the specifications and the applicable drawings,. and subject
to the terms and conditions of the contract..
5-02 GENERAL:
All cutting, drilling, fitting,. and the installation of
wood grounds and forms required to install the terrazzo and as may
be required to prepare the completed terrazzo to receive the work
of other trades shall be performed under this section. Terrazzo not
otherwise shown or specified, shall have a minimum thickness of
l' inches from finished surface to concrete surface. The finished
surface shall show not less than 70 percent aggregate.
5-03 MATERIALS:
a. Cement: Cement shall be locally made, only one brand
of cement shall Ee used for terrazzo, Cement reclaimed from cleaning
bags or leaking container shall not be used, Cement shall conform
to Federal Specification SS- C-192b Type 1.
b. Cleaning compound: The compound used for all cleaning
of terrazzo shall be an approved neutral chemical cleaner free from
acide and strong alkalis or other materials that will affect the
color or otherwise damage the terrazzo,
c. Division strips: Division strips where shown shall
be formed of ha and brass and shall be. of the size and type
indicated on the drawings. Unless otherwise specified, gages for
strips shall be Brown and Sharpe.
(1) Standard strips: Standard division strips shall
be not less than No.-18 gage. age. 'r ps shall be not less than 3/4
inches in depth, with approved anchoring features for the floor
and not less than 1/2-inch in depth for the wainscot
5-01
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Relea 01/07/30: CIA-RDP78-05613A00030dfiW2-7
(2) Base divider strips: Division strips for bases shall
conform to the profile of the base, shall be not less than 1/2-inch
in depth, and shall be of the same thickness and type as the main
division strips. There terrazzo base only is specified, the division
strips'shall be not less than 18 gage.
d. Edging strips: Edging strips shall be not less than
1/8-inch thick, of the same material as division strips, and shall
be provided with a standard form of anchorage having fins of not
less than No. 18 Brown and Sharps gage rust-proofed steel.
e. Marble chips: Marble chips shall have an abrasive
hardness of a degree satisfactory to the Contracting Officer, Size
number 1 chips shall pass a 1/4-inch mesh screen and be retained on
a 1/8-inch mesh screen. Size number 2 chips shall pass 2 3/8-inch
mesh screen and be retained on a 1/4-inch mesh screen,
f. Sand: Sand shall be clean, silicons masonry sand
passing a 1/4-incscreen.,
g. Water:_ Water shall be fresh, clean and free from
acid, alkali, sewage, and organic matter.
5-04 SAMPLES:
Before any material is delivered to the site, the following
samples shall be submitted to the Contracting officer for approval.
Terrazzo one 12 by 12 inches panel of
each type specified.
Division strips . . . Two 12 inch lengths of each type.
Edging strips . . . Two 12 inch lengths of each type.
Cleaning compound . . . Two pint can.
5-05 TERRAZZO MIX:
The terrazzo mixes shall be composed by weight as follows:
One part cement and two parts of marble chips of the sizes and colors
herein specified.
5-06 PREPARATION FOR TERRAZZO:
a. General: Clean the floor slab, and free from all adhesive
compound. Concrete surface to receive terrazzo shall be of a suitable
texture to.bond to the terrazzo finish, as approved by the y Contracting
Officer. The surface shall be roughened with a toothed chisel and,
prior to laying the terrazzo, shall be cleaned of all dirt, oil, grease
and extraneous material.
5-02
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele1001/07/30 : CIA-RDP78-05613A00031002-7
b. Division strips: Terrazzo floors and wainscots shall
be divided by met s rip' s. The division strips shall be set immediately
after the spreading of the' underbed, the strips being partially embedded
therein, securely anchored to the subfloor and grouted solid. All
division strips shall be set straight to lines and to the proper level
to ensure that the tops of the strips will show uniformly after
grinding and smoothing operations are completed. Each joint and
intersection shall be fitted. tight. Strips shall be braced to
prevent bulging during the placing of the terrazzo.
(1) Floors: Unless otherwise shown on the drawings,
or specified, the division in field work of large areas shall be 3
feet by 3 feet, and in small areas shall not exceed 2 feet by 2 feet.,
d. Edging strips; Edging strips shall be placed at
doorways between terrazzo and other types of flooring and along the
edges of all terrazzo bases adjoining other types of floor finished.
The edging strips at doorways shall be, placed in line with the stop
face of doors. All edging strips shall be anchored and groated solid
in the underbed or to the concrete subfloor and braced to prevent-
bulging as specified for division strips.
5-07 PLACING} TEflRAZ20 i
a. Floors: be subs1t face shall be swept clean thoroughly
moistened, but nowt ~tr'uated, and slushed with a coating of neat
cement grout approximately, 1/16-inch in thickness4 The underfed
consisting of one part Portland cement to 4 parts bf coarse-screened
sand shall be spread and brought to a leVel nc, less than 1/2-inch
thick. The dividing strips shall be installed in the green underbed.
The terrazzo mix shall be spread, tamped, and rolled into a compact mass
not less than 5/5-inch thick. After rolling, additional aggregate mix
shall be sprinkled over the surface to fill up all depressions, to
take up excess moisture, and to permit the terrazzo to be troweled to
a level, dense and even surface, slightly above the finish line of
floor. This level shall allow for the surface grinding necessary to
expose the specified area of aggregate, and to produce smooth, level
floors, free of waves and depressions.
b. Bases: All bases shall be of the terrazzo mix and
compositions hereinbefore specified, and shall be poured, and tamped
into well-braced forms, rodded, and worked so that the aggregate
will be well packed against the surface to be exposed in the finished
work. The border at doorways shall extend in to the edging strips
placed on the stop side of doors as indicated on drawings.
c. Seasoning: The completed terrazzo shall be allowed
to season for 6days ing which time it shall be kept moist and
free of traffic. The curing shall be accomplished by (1) covering
with approximately 1 inch thickness of sand; or (2) covering with
building paper or mats; or (3) sprinkling with water at not over
one hour intervals.
5-03
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For ReI '2001/07/30 : CIA-RDP78-05613A0003l1W002-7
d. Surfacing: Following the curing period, the terrazzo shall
be machine-ground to, a true even surface using a No. 24 grit followed
by a ' o. 80 grit or finer abrasive stone. After the first grinding,
the surface shall be thoroughly grouted with the same cement and color
composition as specified for the matrix of the terrazzo mix. The
grout shall be ' of the consistency of thick cream, and shall be b.rashed
over the surfaces of eliminate all. imprisoned air and thoroughly fill
the surface for final grinding.
e. Finishing: ; ans than 72 hours after application,
the grouting cosh= be removed by grinding. In the latter stages
of grinding, the gritstones or other abrasive used in the grinding
machine shall be of a grain or fineness that will give the surface
a boned finish. 9mall areas, inaccessible portions, and corners
which cannot be reached by the grinding machine shall be ground and
rubbed by hand. The honed surface of finished terrazzo shall show
not less than 70 percent of its area in exposed aggregate, evenly
distributed, and shall conform in appearance to the approved samples.
5-08 PROTECTION:
The surfaces of the finished work of other trades shall
be properly protected from damage and soiling during the process
of grinding and washing of the terrazzo. After the finish grinding
has been completed and the surface treatment applied, the terrazzo
work shall be covor d a ku Pi-occcued with material approved by the
Contracting Officer until the completion all work by other trades.
5-09 CIEANING AND COAT.INL+
Prior to the placing of the protective covering, or when
in the opinion of the Contracting Officer it would be better to do so,
after the work of all other trades has been completed and the protec-
tive covering removed; the terrazzo work shall be washed with cleaning
compound mixed with warm water and, using a fine abrasive as necessary,
remove strains or cement smears,, The terrazzo shall be allowed to dry
thoroughly and shall. be given scaling application of preservative
material. The sealing preparation shall be applied in accordance with
the manufacturer's directions, leaving all terrazzo work in clean
condition meeting the approval of the Contracting Officer.
5-10 PRECAST TERRAZZO:
Precast terrazzo shall be of the terrazzo mix of 1 part cement
and 2 parts aggregate and shall be precasted to the size as specified
on the drawings. The terrazzo mix shall be poured and tamped into well
braced forms, rodded, and worked so that the aggregate will be well packed
against the surface to be exposed in the finished work. Both faces and
all edges shall be ground to the satisfaction of the Contracting Engineer.'
The outer corners shall be ground to a radius of 1/32-inch. All the
seasoning surfacing and finishing shall conform to paragraphs specified
in this section. The precast. terrazzo shall be anchored on concrete
wall with anchor bolts. The v7ire mesh reinforcement shall be of No.8
gage wire and be installed in the middle of the terrazzo.
5-04
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Relea 01/07/30: CIA-RDP78-05613A0003c n02-7
SECTION 6
6.-01 SCOPE:
The work covered by this section of the specifications consists
in furnishing all plant, labor, equipment, appliances, and materials,
and in performing all operations in connection with the application
of calking, complete, subject to the terms and conditions of the
contract, and in strict accordance with this section of the specifica-
tions and the applicable drawings.
6-02 WORK NOT INCLUDED:
The section does not include calking occuring in connection
with joints in concrete floors, contacts between members of metal
doors and metal frames; and roofing and sheet metal work.
6-03 MA TERIA IS :
a. , General: Quality requirements for materials listed herein
are based on U.S. Federal Specifications. However, the use of
25X1A products of reputable manufacturers is intended where equiva-
lent to the materials specified, subject to the approval of the
Contracting Officer.
b. Calking Compound: Calking compound shall conform to the
requirements of Federal. Specification TT-C-598, grade 1. The color of
the calking compound shall match the color of the mortar joints.
Delivery of the calking compound to the building site shall be in the
manufacturerts original sealed packages.
c. Sealer: The sealer for the joint grooves in masonry shall
be of quick-drying liquid, and of a type and consistency recommended
by the manufacturer of the calking compound.
d. Rope Yarn: Rope yarn shall be the raveled strands of all
fiber free from oil or other staining element,
e. Sashseal: - Sashseal or approved equal.
6-c4 SAMPLES:
Before the work of application is started, samples of all
materials proposed for use shall be submitted to the Contracting
Officer fr approval.
6-01
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Relea 01/07/30 : CIA-RDP78-05613A00030 02-7
6-05 4PPLIC,,TION
a. General.- Calking shall. be installed in joints around wood
or metal frames built into masonry or concrete, and in any other joints
so indicated on the drawings and as specified under other sections of
these specifications. Calking compound shall be applied by the gun
method using nozzles of proper sizes to fit the several widths of the
joints. The type of gun shall be subject to approval by the Contracting
Engineer.
b. Pre ration: Calking in joints shall be a minimum of 3/4-inch
in depth arr. 1 4-inch in width unless otherwise indicated on the drawings
Where adequate grooves for calking have not been provided, grooves shall
be prepared by cutting and cleaning out the mortar to the minimum depth
and by grinding to the minimum width, taking care that adjoining metal
work is not reduced in section. All particles of mortar., dust, and
other foreign matter shall be brushed out and just prior to calking, the
joint grooves shall be coated with an application of sealer. Where a
suitable mortar backstop has not been provided, the back of joing
grooves shall be packed tightly with rope yarn.
C. Calking: The compound shall be driven into the joint grooves
with sufficient pressure; to force out all air and to solidly fill the
joint grooves. Calking, where exposed, shall be free of wrinkles, and
shall be uniformly smooth. Joints in precast sills and other wash
surfaces shall be filled slightly convex to obtain a flush joint when
dry. Calking around all openings in masonry shall include the entire
perimeter of each opening. Upon completion of the calking, any calked
joints not enbively filled tall be roughened and filled as specified
and the exposed Surface tooled smooth.
d. Cleanin : The surfaces of all materials adjoining calked
joints shall be cleaned of any smears of compound of other soiling
due to the calking applicatio::a,
6-02
Approved For Release 2001/07/30 : CIA-RDP78-05613A000300060002-7
 Approved For Rele 001/07/30: CIA-RDP78-05613A0003&6W002-7
SECTION 7
7-01 SCOPE:
The work covered by this section of the specifications
consists in furnishing all plant, labor,