Physical or chemical test | Result obtained | GB175-2007 specification |
---|---|---|
Fineness (80 μm) | 8.5 % | <10 % |
Specific surface (m2/kg) | 355 | 300–450 |
Setting time (min) | ||
Initial | 113 | >90 |
Final | 389 | <600 |
Compressive strength (MPa) | ||
3 days | 17.4 | >16.0 |
28 days | 44 | >42.5 |
Specific gravity (kg/m3) | 3.20 | – |
Standard consistency water requirement | 28 % | <30 % |
C3A | 3.2 % | <9.0 % |
C4AF | 7.1 % | <12.0 % |
MgO | 2.2 % | <6.0 % |
Na2O + 0.658K2O | 0.12 % | <0.6 % |