Triaxial Mechanical Properties of Coral Seawater Sea Sand Concrete

被引：0
|
作者：
Chen Y. [1 ,2 ,3 ]
Li P. [1 ]
Chen Z. [3 ]
机构：
[1] School of Civil Engineering and Architecture, Guangxi University of Science and Technology, Guangxi, Liuzhou
[2] Key Laboratory of Disaster Prevention & Mitigation and Prestress Technology, Guangxi Colleges and Universities, Guangxi, Liuzhou
[3] Key Laboratory of Engineering Disaster Prevention and Structural Safety, Ministry of Education, Guangxi University, Nanning
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2023年 / 51卷 / 11期
关键词：
coral seawater sea sand concrete; damage analysis; energy dissipation; stress–strain curve; triaxial compression;
D O I：
10.14062/j.issn.0454-5648.20230284
中图分类号：
学科分类号：
摘要：
To analyze the triaxial mechanical properties of coral seawater sea sand concrete, the effects of aggregate and lateral confining pressure on the failure mode, stress-strain curve, yield stress, yield strain, and damage evolution of specimens were investigated via conventional triaxial tests. The results show that the coral coarse aggregate specimen is more susceptible to the influence of confining pressure value. The cracks form transformation and plastic flow appear on the surface of the specimen at a confining pressure value of 9 MPa. The stress-strain curve appears a stress platform section' at a confining pressure value of 12 MPa, while the gravel coarse aggregate specimen appears the above changes at confining pressure values of 15 MPa and 24 MPa, respectively. After a confining pressure value reaches 15 MPa, the stress-strain curve of the coral coarse aggregate specimen shows a bilinear shape with a second linear branch. The dissipation energy of the specimens gradually increases and the damage development gradually delays with the increase of confining pressure, yield stress and yield strain. In addition, the yield stress calculation formula of coral seawater sea sand concrete was aslo proposed, thus providing a reference for the relevant theoretical analysis and engineering application. © 2023 Chinese Ceramic Society. All rights reserved.
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页码：2814 / 2823
页数：9
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