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1.裂缝产生的主要原因及含义混凝土的抗压能力强,抗拉能力弱。因此,即使稍为受拉就可能产生裂缝。根据不同环境条件,这些细裂缝的宽度可限制在0.2～0.4毫米以内,这对结构物的正常使用、耐久性以及安全性都没有任何妨碍。但对于贮藏液体、汽体用的贮藏容器和设备则不允许有任何裂缝。过去三十年来,对混凝土中钢筋防锈蚀已做了很多的研究,对裂缝腐蚀影响也能够
1. The main reason cracks and the meaning of the concrete compression capacity, tensile strength is weak. Therefore, even a slight tension may cause cracks. According to different environmental conditions, the width of these fine cracks can be limited to 0.2 ~ 0.4 mm, which does not interfere with the normal use, durability and safety of the structure. However, for liquids, storage containers and equipment for vapor, no cracks are allowed. In the past three decades, a great deal of research has been done on the corrosion protection of steel bars in concrete, and the influence on crack corrosion can also be done