GATE CE 2020 Set 1 — Question 18
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Question
During the process of hydration of cement, due to increase in Dicalcium Silicate () content in cement clinker, the heat of hydration
Correct answer
(B) decreases
Solution
Dicalcium Silicate () is one of the four major Bogue's compounds in cement. It hydrates slowly and is responsible for the later strength of concrete. It also generates significantly less heat of hydration compared to Tricalcium Silicate () and Tricalcium Aluminate (). Therefore, increasing the content in cement clinker results in a decrease in the overall heat of hydration.
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