In the manufacture of cement definite proportions of argillaceous and calcareous materials are burnt at a temperature of
The percentage of gypsum added to the clinker during manufacturing process is
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The setting and hardening of cement after addition of water is due to
The tricalcium aluminate compound present in cement
The contribution compounds of cement in decreasing order of rate of hydration are
In medium-strength concrete the water-cement ratio should not be less than
In the air permeability test, the specific surface (in mm2/g) is of the order of
31 docs|280 tests
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31 docs|280 tests
|