Liquid-Type Hydration Heat Reducer Composition for Concrete and Concrete Using the Same

摘要

The present invention relates to a technology for minimizing the damage caused by the heat of hydration of cement, and more particularly, a liquid-type admixture that can be applied to existing ready-mixed concrete factory facilities as it is, and a liquid-type heat-of-hydration reducing agent that has an effect on reducing the heat of hydration of cement and restoring strength performance and to a concrete for reducing heat of hydration using the same. The liquid-type heat reducing agent composition according to the present invention comprises 90 to 95% by weight of a retardant; 3 to 5% by weight of an accelerator; 150 to 250 parts by weight of water are mixed with 100 parts by weight of the powder composition including 2 to 5% by weight of the phase change agent, where the phase change agent is 0.3 to 1.2 parts by weight of an emulsifier-based cationic surfactant to 100 parts by weight of stearic acid , characterized in that 0.1 to 0.3 parts by weight of the non-aqueous dispersant is mixed. Concrete for reducing heat of hydration according to the present invention is characterized in that the liquid-type heat of hydration reducing agent composition is mixed with 2 to 5 parts by weight based on 100 parts by weight of the binder in the concrete mix.