Hydration of cement

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Messaoud Saïdani

Hello Peshal

I believe the following article explains why and gives more details.

Article Hydration of Tricalcium Aluminate (C3A) in the Presence and ...

Best wishes

Peshal Dahal

thank you Messaoud

My pleasure :)

then everything you need may be in google too if you dont want to hear from the experts . dont answer in a sarcastic way if you dont know .

Jialiang Wang

I'm sorry, maybe I'm speaking the wrong way, but I'm not being sarcastic.Maybe I need to think it over and get back to you

Suraj Shah

Water reacts instantly with tricalcium aluminate. Hydration likely begins already during grinding of cement clinker due to residual humidity and dehydration of gypsum additives. Initial contact with water causes protonation of single bonded oxygen atoms on aluminate rings and leads to the formation of calcium hydroxide. The next steps in the sequence of the hydration reaction involve the generated hydroxide ions as strong nucleophiles, which fully hydrolyze the ring structure in combination with water.