Thermokinetic monitoring of concrete using chemical additives

This article shows the results of a study to determine the rate and specific heat release of Portland cement grade PC-400 D20, the effect of temperature on the rate of heat release of cement stone. Research methods and a calorimeter diagram for determining the heat release of concrete during its hardening under isothermal conditions, the characteristics of the heat release of cement with additives and the kinetics of temperature changes during concrete hardening in molds are also given. The effect of the accelerating component of the complex additive, thiosulfate, on the value of the 1st exoeffect is small. This is due, first of all, to the fact that it compensates for the retarding effect of plasticizing components. A certain relationship is known between the degree of hydration and the heat release of concrete. Other things being equal, the dependence is directly proportional.

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