CEMENT CLINKER WITH LOW HEAT OF HYDRATION AND CEMENT COMPOSITION WITH LOW HEAT OF HYDRATION

摘要

PROBLEM TO BE SOLVED: To provide a cement composition with low heat of hydration whose heat of hydration is close to low-heat cement, and whose strength developability is equal to or better than moderate-heat cement.;SOLUTION: The cement clinker with low heat of hydration includes, by mass, 40-50% of C₃S, 30-40% of C₂S, 3-5% of C₃A, 9-13% of C₄AF, 0.15-0.55% of SO₃ and 0.015-0.15% of Ba. The cement composition with low heat of hydration includes 1.5-5.0 pts.mass of gypsum in terms of SO₃ to 100 pts.mass of the cement clinker with low heat of hydration.;COPYRIGHT: (C)2013,JPO&INPIT