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Why should high alumina cement not be cured at a temperature higher than 30℃?
In the hydration process of high alumina cement, when the temperature is lower than 20℃, the main hydration product is Cao al 2 o 3 o 10H2O, when the temperature is 20 ~ 30℃, the main hydration product is not 2 Cao al 2 o 3 o 8 H2O, and when the temperature is higher than 30℃, the main hydration product is not 3 Cao al 2 o 3 o 6 H2O, so the strength of this product is low, so high alumina cement.
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