Q: 117 (CAPF/2023)Which one of the following statements is not correct regarding the setting of cement?The addition of a small percentage of gypsum (CaSO₄) lengthens the setting period of cement.According to the colloidal theory, gels of hydrated silicates are formed and when these gels harden, the set cement loses strength.Tricalcium silicate is responsible for initial setting of cement.Dicalcium silicate and tricalcium silicate are responsible for the final strength which occurs in about a year.question_subject: Science & Technologyquestion_exam: CAPFExplanationGypsum is added to cement to regulate its setting time, while tricalcium silicate aids in early strength. The statement regarding gels losing strength when hardened is not correct, making option (b) incorrect. Please login to bookmark this question