A. | Tricalcium silicate |
B. | Di-calcium silicate |
C. | Tri-calcium aluminate |
D. | Tetra calcium alumino ferrite. |
A. | five times their original dimensions |
B. | seven times their original dimensions |
C. | ten times their original dimensions |
D. | three times their original dimensions. |
A. | is used as water proofing material |
B. | is used as damp proofing material |
C. | is made from bitumen and hessian fibres |
D. | all the above. |
A. | low-molecular substances are removed from the high molecular substance |
B. | the reaction proceeds with an evolution of ammonia |
C. | the reaction proceeds with an evolution of hydrogen chloride |
D. | all the above. |
A. | Tricalcium aluminate |
B. | Tetra-calcium alumino-ferrite |
C. | Tricalcium silicate |
D. | Dicalcium silicate. |