防止大体积混凝土裂缝措施及其工程应用

On Prevention of Mass Concrete Crack

大体积混凝土在工程中应用广泛,但由于其本身的特性,在使用或施工过程中不可避免地会出现裂缝.结合紫荆关六级水电站厂房大体积混凝土的施工,对混凝土裂缝出现的机理混凝土拌和材料、外加剂的使用、施工方法、养护及温度监控方面等方面结合设计、施工的经验提出了一些解决的方法和措施,为其大体积混凝土施工提供有利的措施和可靠技术保证.

Massive concrete is widely used in engineering,and encounters cracks inevitably due to its own characteristics in use or construction process.Taking the massive concrete construction of Zijingguan Hydropower Plant for example,some solutions and measures are put forward in the essay on the design and construction of mass concrete in aspects of the mechanism of concrete cracks,concrete mixing materials,the use of admixture,construction and maintenance,and temperature monitoring as well,providing favorable and reliable guarantee for other massive concrete engineering.