混凝土施工裂缝与控制

混凝土施工易产生裂缝,其引起裂缝的原因是多方面的,有的是地基不均匀沉陷引起裂缝,有的是混凝土温度应力变化引起裂缝,混凝土早期养护不到位,支模不稳定,原材料的质量问题,混凝土的干缩变形,水灰比的选择等,都可能使混凝土施工出现裂缝。为保证混凝土施工质量要求,预防混凝土施工裂缝发生,通过分析混凝土施工裂缝的成因,提出应对混凝土施工裂缝的有效措施,对提高混凝土施工技术及其可能引起的混凝土施工效应,具有较为重要的价值。

Construction Crack and Control of Concrete

The concrete construction is easy to produce cracks,the reasons of which are various,such as the unequal settlement of ground,and the temperature stress change,deficient precuring,unstable supporting of templates,quality of raw materials,drying shrinkage distortion,water-cement ratio of concrete and so on.In order to guarantee the concrete construction quality and prevent the cracks,the effective measures for preventing the cracks are proposed through analysis of the origins of cracks,so as to enhance the c...