Double-K fracture characteristics of three point bending beams of non-standard reinforced concrete

被引：0
|
作者：
Fan, Xiangqian [1 ,2 ]
Hu, Shaowei [1 ,2 ]
Zhu, Haitang [3 ]
Lu, Jun [1 ,2 ]
机构：
[1] Nanjing Hydraulic Research Institute, Nanjing
[2] State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing
[3] School of Water Conservancy and Environment, School of Water Conservancy & Environment, Zhengzhou
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2015年 / 18卷 / 05期
关键词：
Double-K fracture toughness; Fracture characteristic; Fracture test; Three point bending beam;
D O I：
10.3969/j.issn.1007-9629.2015.05.003
中图分类号：
TU528 [混凝土及混凝土制品]; TV43 [水工混凝土和砂浆];
学科分类号：
摘要：
Fracture test of three point bending beams of non-standard reinforced concrete was carried out. The fracture characteristics of three point bending beams of non-standard reinforced concrete were studied systematically. Results indicate that the initial load and the maximum load increase with the increase of specimen height. The precritical crack propagation length relative value is independent of specimen height. Similar to the double-K fracture toughness, both the initiation fracture toughness and the unstable fracture toughness are not change with the increase of specimen height, which can be regarded as constants to three point bending beams of non-standard reinforced concrete. ©, 2015, Tongji University. All right reserved.
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页码：733 / 736and762
相关论文
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