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In portland cement what enhances the settling time?(a) CaSO4, 1/2 2H2O(b) CaSO4, 2H2O(c) CaCO3(d) CaSO4 |
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Answer» (b) CaSO4, 2H2O Gypsum (CaSO4, 2H2O) is usually added to prevent early hardening and increase the settling time |
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