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抗裂性是水工大体积混凝土的特性之一,它是有关混凝土变形的一个综合性质,如极限拉伸、温度变形、徐变、干缩、自生体积变形等。大体积混凝土最感到难以解决的问题就是混凝土的裂缝。从已建的混凝土坝来看,很少没有裂缝的,有的少一些,有的多一些。尽管完全按照温控要求去做,也很难保证混凝土不裂。但另一方面,若采用简易措施,在混凝土质量上多注意一些,即使超过温控标准也有并不开裂的情况。产生这种按计算结果该裂的不
Crack resistance is one of the characteristics of hydraulic mass concrete, which is a comprehensive nature of concrete deformation, such as ultimate tensile, temperature deformation, creep, shrinkage, self-generated volume deformation. The most difficult to solve the problem of mass concrete is the concrete cracks. From the point of view of the constructed concrete dam, there are few and no cracks, some less and some more. Although fully in accordance with the requirements of temperature control, it is difficult to ensure concrete is not cracked. On the other hand, if simple measures are taken, some attention should be paid to the quality of the concrete, even if it exceeds the temperature control standard and does not crack. Produce this according to the results of the split not