Properties of Low-density Lightweight Aggregate Concrete under Uniaxial Loading
The aim of this study is to investigate the influence of EPS content on failure mode, stress-strain relationship and elastic modulus of expanded polystyrene aggregate concrete (PAC) with density lower than 900 kg/m3 under uniaxial loading. The results show that PAC performs a good compressibility in the compression failure process. Apparent oblique crack appears in the case of uniaxial compression specimen damage; the lower the density is, the smaller the tilt angle of oblique cracks will be. Stress-strain curve of PAC with density larger than 422 kg/m3 maintains a straight line relationship on ascending segment but varies with the density on the descent segment. The lower the density is, the larger PAC residual relative stress will become. Elastic modulus of PAC is proportional to 5.85 times index of relative density.
Expanded polystyrene (EPS) Lightweight aggregate concrete Stress-strain curve Elastic modulus
Cong Mi Cheng Da Gen Su Chu Jie Jiao Juan He
College of Science and Engineering of Materials, South China University of Technology,Guangzhou 5106 College of Science and Engineering of Materials, South China University of Technology,Guangzhou 5106 College of Civil Engineering, Guangzhou University, Guangzhou, 510006, P.R. China
国际会议
上海
英文
1638-1643
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）