Constitutive relations of recycled concrete under triaxial compression after high temperature

被引：0

作者：

Su, Yisheng ^{[1
,2
]}

Meng, Ercong ^{[1
]}

Chen, Zongping ^{[1
,2
]}

Chen, Pengpeng ^{[1
]}

机构：

[1] School of Civil and Architectural Engineering, Guangxi University, Nanning

[2] Key Laboratory of Disaster Prevention and Structural Safety of Guangxi, Guangxi University, Nanning

来源：

Jianzhu Cailiao Xuebao/Journal of Building Materials | 2015年 / 18卷 / 06期

关键词：

Complete stress-strain curve; Constitutive relation; High temperature; Recycled concrete; Triaxial compression;

D O I：

10.3969/j.issn.1007-9629.2015.06.006

中图分类号：

学科分类号：

摘要：

Cylindrical recycled concrete specimens with the size of ø100×200 mm after high temperature were designed to conducted conventional triaxial load test, based on which the complete stress-strain curves were acquired. The constitutive equation of recycled concrete under triaxial compression after high temperature was proposed. The results show that under uniaxial stress, the complete stress-strain curve of recycled concrete has obvious spike, and with the increase of lateral confining pressure, the curve becomes smooth and plump. The change trend of constitutive relation curve of recycled concrete under triaxial compression after high temperature is similar to the normal concrete. The fitting constitutive equation of recycled concrete under triaxial compression after high temperature agrees well with the experimental results. © 2015, Tongji University. All right reserved.

引用

页码：946 / 952

页数：6

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