Exothermal effects calcium chloride

The setting and hardening of concrete are accelerated in the presence of calcium chloride. These are related to the effect of CaCl2 on the rate of hydration of cement in concrete. The hydration of cement is exothermic, resulting in the production of heat, and if the heat is produced at a faster rate, larger amounts of the hydrates are formed at earlier times in the presence of accelerators. This is particularly significant in the first 10-12 hours. The influence of different amounts of calcium chloride on the rate of heat development is depicted by conduction calorimetric curves (Fig. The position of the peak corresponding to the... 

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