表层混凝土性能分析

Analysis on Properties of Suface Layer's Concrete

混凝土结构的表层与内部在物理力学性能方面存在着差异。文章分析了产生这种差异的原因 ,以及由此对表层造成的缺陷。为了确保构件的耐久性 ,优良的表层混凝土是必须的。文章从改善混凝土养护条件 ,降低表层水灰比 ,科学制定保护层厚度等方面分析了提高表层混凝土质量从而提高构件耐久性的方法。

In concrete structure,the quality of surface layer's concrete is different from interior concrete both in physical and mechanical properties and the causes,that yield this difference and lead surface concrete to formthe defects,are analyzed in the paper.In order to ensure the durability of concrete structure,the surface layer's concrete has to possess the good quality.It is discussed for increasing the quality of surface layer's concrete by the methods of improving the curring,reducing the water-cement ratio at the surface layer's concrete and scientifically deˉtermining the depth of concrete cover.