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NDA General Science Chemistry Questions Part 1
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Question : 43
Total: 100
Addition of gypsum to cement:
[NDA II 2015]
reduces setting time to cement
produces very light colour cement
increases setting time of cement
shining surface is formed
Validate
Solution:
During the cement manufacturing process, upon the cooling of clinker, a small amount of gypsum is introduced during the final grinding process. Gypsum is added to increase the "setting of cement".
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