How to make rapid hardening cement?
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Rapid hardening cement is a type of cement that can be used to reduce the total curing time of concrete. The most common method for making rapid hardening cement is by increasing the amount of C3A (tricalcium aluminate) in the cement mix.
This increases the rate of cement hydration, which accelerates the hardening process. Other methods include adding gypsum and reducing the amount of water added to the mix. Other additives including admixtures can also be used to speed up the hardening process.