混凝土面板抗裂性能的时间效应

The time effect of the crack resistance of the concrete slab

通过抗裂试验研究分析及多方面的资料综合与论证 ,提出混凝土面板的抗裂性指数 η作为评价面板混凝土抗裂性能的指标 ,且 η越大 ,抗裂性能越好。在此基础上 ,对混凝土面板抗裂性能的时间效应进行了深入研究 。

After the test research of the crack resistance and analysis of the mechanism of the anti-crack,the paper presents the index of the crack resistance η as the comprehensive assessment of the crack resistance of concrete slab.Meanwhile,the larger the value of the index is the better the crack resistance becomes.And we study the time effect of the crack resistance deeply,and present the characteristic of the development of the crack resistance of the concrete slab.