This article analyzes causes of mass concrete cracks occurring in construction,describes concrete mixing proportion optimization demands and principles from angle of preventing mass concrete cracks,and mainly illustrates the grouting technology and maintenance points of mass concrete,so as to guide practice.%针对大体积混凝土施工产生裂缝的原因进行了分析,从防治大体积混凝土裂缝的角度,阐述了混凝土配合比优化的要求及原则,并着重介绍了大体积混凝土的浇筑工艺及养护要点,以期指导实践。
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