Question

Which of the following cements is suitable for use in massive concrete structures such as large dams?

• A. Ordinary Portland Cement
• B. Low-Heat Cement
• C. Rapid Hardening Cement
• D. Sulphate Resisting Cement

Answer 1

The correct option is B Low-Heat Cement

Ans. (b) : For the construction of mass concrete structure like dams, cements with low heat of hydration are preferred .
Ex:- Low heat cement, Portland Pozzolana cement, Blast furnace slag cement etc.
Low Heat Portland Cement :
• It is a Portland Cement with low $C_{3}S$ and $C_{3}A$ and high C2S content.
• It is suitable for mass concreting works such as dams due to low heat of hydration.
• Rate of strength development is slow but the ultimate strength is same as the OPC.