Larger proportion of lime grounded finer than normal cement
Lesser proportion of lime grounded coarser than normal cement
Lesser proportion of lime grounded finer than normal cement
Excess percentage of gypsum
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The correct answer is: D. Excess percentage of gypsum.
Rapid hardening cement is a type of cement that gains strength more quickly than ordinary Portland cement. It is made by adding an excess of gypsum to ordinary Portland cement. The gypsum slows down the hydration of the cement, which allows the cement to gain strength more quickly.
The other options are
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