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大面积的混凝土裂缝产生的原因是什么？有什么预防措施呢？ - 工程施工 - 项目管理 - 氿上知道
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（二） 防治措施：1、选用低水化热的水泥。如大坝水泥、矿渣水泥、粉煤灰硅 酸盐、火山灰质硅酸盐水泥。 2、覆盖浇水养护（使得内外温差不超过25度为宜）保证强度不变的情况下，减少水泥用量，即减少水灰比。 3、改善浇筑方式（全面分层、分段分层、斜面分层、等）或埋设循环冷却管。