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Sulphate-resisting portland cement

 

SRPC 400-D0 GOST 22266-94, GOST 30515-97

Production cycle:

  • raw meal preparation;
  • raw meal baking and clinker preparation;
  • clinker grinding with gypsum and production of sulfate-resistant portland cement;

Usage:

Sulphate-resisting portland cement is intended for manufacture of concrete and concrete-steel constructions having resistance to corrosion on exposure to media that are aggressive in their sulfate content.

 

PARAMETERS

CLINKER CHARACTERISTICS

CEMENT

PROPERTIES
Chemical analysis
% SiO2 21,43....21,50 21,40....21,51
% Al2O3 4,43....4,52 4,20....4,50
% Fe2O3 4,53....4,90  4,55....4,95
% CaO 62,35....62,70  62,5....63,7
% MgO 1,50....1,52 1,60....1,72
% K2O 0,92....1,35 0,99....1,24 
% Na2O 0,18....0,25 0,17....0,30 
% SO3 0,59....0,73 2,20....2,40 
Rating module
SR (saturation ratio) 88,60....89,70 88,58....89,75 
Silicate module 2,34....2,40  2,32....2,39
Aluminate module 0,96....0,98 0,94....0,98 
Tricalcium silicate (C3A) , % 3,92....4,42 0,70....3,20
Physical tests

Specific surface,

cm2/gm
  2800....3000

Compression ultimate strength

at the age of 28 days, MPa
  39,4....40,4
Initial setting, min   235....250
Final setting, min   280....325
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