The percentage content of water and calcium sulphate in gypsum is ___ and ___ respectively.

___________ is the binding material of acid-resistant cement.

The specific surface of cement should not be lesser than ______

Sodium fluosilicate added in the acid-resistant cement decreases the resistance of cement to water and acid and also ret…

Total sulphur content in the cement should not be more than _____

High-alit contains tricalcium silicate more than ____

The presence of chromium oxide in cement imparts _____ colour.

Which of the following compounds is not formed during the setting action of the cement?