| Loss on ignition | % |
Max 1.0 |
Insoluble residue |
% |
Max 0.75 |
SiO2 |
% |
18 - 26 |
Al2O3 |
% |
3 - 8 |
Fe2O3 |
% |
2 - 5 |
CaO |
% |
58 - 67 |
MgO |
% |
Max 5.0 |
SO3 |
% |
- |
K2O |
% |
- |
Na2O |
% |
- |
Total alkali (Na2O + 0.658 * K2O) |
% |
Max 1.0 |
Free lime |
% |
Max 1.5 |
Moisture |
% |
Max 1.0 |
PHYSICAL PROPERTIES |
||
Compressive strength + 03 days + 28 days |
N/mm² N/mm² |
Min 25 Min 50 |
Size + < 1 mm + < 25 mm and > 5 mm |
% % |
Max 10 Min 50 |
