Effect of interface to strength and fracture parameters of RCC with cracks

被引：0
|
作者：
Zhang, Xiao-Gang [1 ]
Wang, Xue-Zhi [2 ]
Sun, Rong-Shu [2 ]
Huang, Zhi-Qiang [3 ]
机构：
[1] Shenzhen Municipal Key Laboratory on Durability of Civil Engineering, College of Civil Engineering, Shenzhen University, Shenzhen 518060, China
[2] Department of Civil Engineering, Liaoning Institute of Technology, Jinzhou 121001, China
[3] School of Architecture, Shenyang University of Technology, Shenyang 110023, China
来源：
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering | 2007年 / 24卷 / 03期
关键词：
Cracks - Fly ash - Fracture toughness - Mortar;
D O I：
暂无
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学科分类号：
摘要：
The study discussed the effect of interface on the strength and fracture parameters of the RCC with cracks. The results show that the interface caused the decrease of equivalent strength with the increase of weakened degrees. The equivalent strengths of single saw specimens with weakened degrees of 0.1, 0.2 and 0.3 decrease 13.37%, 37.44% and 46.96%, and those of double saw specimens with the same weakened degrees decrease 16.52%, 25.46% and 19.99%, respectively. It indicates that the influence of interface on the equivalent strength become greater with the increasing of weakened degrees, and the effects of interface on the single saw specimens are bigger than those of double saw specimens. Because there is an interface, fracture toughness of the rolled compacted concrete (RCC) decreases 17.85% in the case of four hours interval of interface and nontreatmeat and 5.67% in the case of four hours interval of interface and 10 mm fly ash cement mortar laid on interface.
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页码：240 / 245
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