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In order to prevent this rapid reaction _______ is added to the clinker.(a) C4AF(b) Gypsum(c) Water(d) Extra cementI got this question in semester exam.My question is based upon Hydration of Cement in chapter Cement of Concrete Technology

Answer»

Right answer is (b) Gypsum

The EXPLANATION: In ORDER to prevent this rapid reaction gypsum is added to the CLINKER. Gypsum, C3A&water REACT to form RELATIVELY insoluble Calcium-Sulfo-Aluminates.



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