REPORT NEW DEVELOPMENTS IN CEMENT INDUSTRY

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000600330665-7
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 22, 2016
• Document Release Date: August 29, 2011
• Sequence Number: 665
• Publication Date: August 9, 1950
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/08/31: CIA-RDP80-00809A000600330665-7
CLASSIFICATION SECRET OSE
INFORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCASTS CD t O.
CENTRAL INTELLIGENCE AGENCY REPOR,1
COUNTRY USSR
SUBJECT Economic - Construction materials
HOW
PUBLISHED Daily, weekly newspapers
WHERE
PUBLISHED USSR
DATE
PUBLISHED 31 Mar - 20 May 1950
Russian
--
-
OF 110 Ol+TID STATIS ?ITl11 i1. - -. ---------
y, S. C.. S+ All U. Al Al11500. III TIAIIIISSIOI on INK IltILATIOI
oP in COITIIl IN ANT 141101 TO Al o1AOTNOI SID FIN 0X +! PIO?
1111100 IT LAW. IIPIODUCT+O1 OF THIS Poll II P10111+100.
Newspapers as indicated.
DATE OF
INFORMATION 1950
DATE DIST. q Aug 1950
NO. OF PAGES 2
SUPPLEMENT TO
REPORT NO.
THIS IS UNEVALUATED INFORMATION
REPORT NEW DEVELOPMENTS IN CEMENT INDUSTRY
SUGGEST. USE OF LOCAL RAW MATERIALS -- Leninskoye znautyyaa, No 97, 16 May 50
With the growth of construction in the Karelo-Finnish SSR, a shortage of
locally manufactured binding materials, including lime, cement, etc., has been
noticeable. At present, construction projects are supplied with binding mate-
rials shipped from other republics and oblasts.
Until recently, it was generally considered that Karelia had no re-
sources of rocks suitable as raw materials for the production of lime and ce-
ment. However, geological data show that it is entirely possible to organize
production of binding materials in the Karelo-Finnish SSR on the basis of lo-
cal raw materials. Local resources have not been utilized for this purpose
partly because builders prefer to use the old familiar types of binding mate-
rials, such as fat air-slaked lime and standard Portland cement -- products
for which there is still a shortage of raw materials in Karelia. Another rea-
son for nonexploitation of local resources is that the dolomites and dolomi-
tized limestones abundant in Karelia have not been investigated sufficiently.
These rocks could be the source of a local industry of .binding construction
materials.
Modern technology has made great progress in the production of dolomitic
lime, In Leningrad Oblast, for example, extensive use has been made of magne-
sian and dolomitic lime manufactured from carbonate rocks very similar to the
magnesian and dolomitic rocks of the Karelo-Finnish SSR. The new technological
method developed by Engineer Smirnov for producing dolomitic lime in the form
of a ground powder made it possible to utilize this binding material, without
any waste products in the slaking process.
The Karelo-Finnish SSR has sufficient natural resources for the produc-
tion of various types of cement. There are a number of large deposits of
clay in the central and southern parts of Karelia, which are now being used
only for brick production but could be utilized in the production of clay-
cement. A substitute for clay in cement production would be Nigozero clay
shale, found in many regions of Karelia and now used only as facing material.
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Karelia has deposits of other rocks, such as diatomite and volcanic tuff,
which can be used in the cement industry as hydraulic admixtures to improve
the quality of cement. Unfortunately, these rocks have not been investigated
at all as a possible source of raw material for cement production.
Pegmatites are also of considerable interest for the production of a
special type of cement with a high silica content, called feldspar cement.
The reserves of pegmatites in Karelia, suitable for this type of cement pro-
duction, are practically inexhaustible.
ESTONIAN SHALE USED AS FUEL IN CEMENT PLANT -- Promyshlennost' Stroitel'nykh
Materialov, No 14, 31 Mar 50
The "Punane-Kunda" Plant in Kunda., Estonian SSR, is the only enterprise
of the cement indi'str'y which uses shale for clinker firing. The results of
30 years' experience in using shale as an industrial fuel have been very fa-
vorable, The plant's furnaces operate on fine third-grade oil shale which is
easily available, as a waste product of the shale-mining industry. The plant
receives shale with an ash content of 63 to 64 percent, and a calorific value
of 2,900 to 3,100 calories per kilogram, The finely ground shale is blown into
rotary furnaces. Because of its relatively low calorific value, a much larger
quantity of fuel is necessary than in the case of coal. The shale ash, acting
as a flux, facilitates the formation of clinker.
The use of shale as an industrial fuel requires the expansion of ware-
houses, drying and grinding installations. Nevertheless, it is profitable in
every respect to build a cement plant next to a shale deposit.
UNSLAKED LIME RECOMMENDED FOR CONSTRUCTION -- Pravda Ukrainy, No 118, 20 May 50
The Administration of Industrial Cooperatives, Council of Ministers RSFSR,
has decided to make extensive use of unslaked ground lime in construction. Un-
slaked lime, in the form of powder, has greater binding properties and may be
compared to cement.
SPECIALISTS TO BE TRAINED FOR CEMENT INDUSTRY -- Kommunist Tadzhikistana, No 71,
9 Apr 50
During 1950, faculties for cement technology are to be opened at the Ural,
Tomsk, Novocherkassk and Lvov polytechnical institutes and at the Leningrad
Technological Institute imeni.Lensoviet, A similar chair will be established
at the Moscow Chemicotechnological Institute imeni D. I. Mendeleyev.
Mechanical engineers serving Ls specialists for cement-plant machinery
will be trained in six of the largest higher technical schools in Leningrad,
Kiev, Kharkov, and other cities. The Sverdlovsk Mining Institute and the Novo-
cherkassk, Kiev and Central Asian polytechnical institutes are planning to
train engineers for the mining of nonmetallic mineral deposits.
Sanitized Copy Approved for Release 2011/08/31: CIA-RDP80-00809A000600330665-7