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Dear sirs,
  Let me suggest to your attention little advertising information.
We'll very pleasant for your notes and any related information.
E-mail address: murat@volcan.kamchatka.su


   ASTRINGENT SUBSTANCE WITHOUT CLINKER FOR BUILDING PURPOSES

Possible substitute of portland cement is suggested.
The method of getting astringent substance without clinker on the
basis of silicate & alumosilicate rocks is worked out.

ASTRINGENT SUBSTANCE'S COMPOSITION:

Silicate or alumosilicate rock             72.5 - 90%
Composition correcting additive             8.0 - 15%
Activating additive                         3.0 - 13%
Other additives: plastificator,
air-involver etc.                           up to 1.0%

ASTRINGENT SUBSTANCE'S MAIN CHARACTERISTICS:

Specific surface                           200 - 500 m%/kg
Pour density                                 0.9 - 1.1 g/cub.sm
Water/astringent substance ratio              0.4 - 0.55
Activity                                   up to 40 - 50 MPa
Time needed for 75% firmness gain
under steaming                             6 - 12 hours
Thermoresistance                           1000 - 1200nC
Frost-resistance                           not less than 50 cycles

  Technology of astringent substance's witout clinker production
consists of dispergation of the initial silicate or alumosilicate
rock with correcting additive  up to 200 - 500 m%/kg  specific
surface. The value of 250 - 350 m%/kg for the specific surface
are more good. Other additives ( activating etc. ) are added with
water.
  Concrete mixture production, wares' moulding, thermo-humid pro-
cessing are utterly entered the technological scheme of the co-
rresponding productions on the basis of ordinary cements.
  The concretes on the basis of astringent substance without
clinker are needed less amounts of the astringent substance than
ordinary cements with the affinity of physico-chemical properties
of the astringent substance's basis & inert fillers.

  The group of elaborators of the astringent substance without
clinker is ready to conclude the agreement on the:
- exploration of the customer's raw material & possibility of
  its utilization as the astringent substance's basis;
- elaboration of the astringent substance's composition on the
  basis of customer's raw material;
- determination of the astringent substance's physico-chemical
  properties & conditions of the thermo-humid processing;
- elaboration of the concrete's mixture composition for blocks
  & bricks production;
- if it's necessary - to accomplish production of the experimental
  lot of blocks & bricks on the basis of customer's raw material
  & equipment.