超缓凝早强大体积混凝土的施工试验

Tests for Construction of Ultra-Retarding and Early-Strength Massive Concrete

通过对大体积超缓凝混凝土施工试验,给出了“超量取代法”和“双掺水泥”高标号混凝土施工配合比,其对大体积混凝土的减水降热、延时初凝和增强防裂具有较好的效果。

This paper gives a mix proportioning for construction of high grade concrete of excessive amount replacement method and adding of two sorts of admixture cement through tests for ultra-retarding and early-strength massive concrete. The mix proportioning herewith has sound effect of reducing water and hydration heat, retarding initial setting and improving crack resistance of the massive concrete.