Discussion
Tricalcium aluminate is responsible for the
Answer: D
Correct answer: flash set and the highest heat of hydration
Tricalcium aluminate reacts almost instantly with water, releasing a great deal of heat and stiffening the paste before it can be placed. That is exactly why gypsum is ground in with the clinker: it reacts with the aluminate to form ettringite, which coats the grains and delays the reaction. The compound contributes little to strength.
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