期刊
JOURNAL OF CLEANER PRODUCTION
卷 181, 期 -, 页码 753-771出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2018.01.247
关键词
Recycled aggregate concrete (RAC); Stress-strain relationship; Variability; Probability density function (PDF); Uniaxial compression loading; Normal distribution
资金
- National Natural Science Foundation (NSFC) of PR China [51325802, 5161101205]
- Research Fund for International Young Scientists of NSFC [51550110234]
Uniaxial compression loading tests were carried out to investigate the variability in stress-strain relationship of recycled aggregate concrete (RAC) due to intrinsic variability in properties of recycled coarse aggregates (RCAs). RCAs were selected from a single source to minimize the effects of potential variations in properties of waste concrete. Natural aggregate concrete (NAC) and RAC prisms were designed with different RCA replacement ratios but similar compressive strength. The results show that the RAC prisms have a similar failure pattern with that of NAC specimens. The RAC specimens were however found to have a lower elastic modulus and a higher peak strain. The variability of the peak stress, peak strain, elastic modulus and ultimate strain was found to follow a normal distribution. Based on the collected experimental data, a modified RAC stress-strain model was proposed. The RAC was found to possess a bit more brittle properties than NAC, as indicated by the steeper stress-strain curve's descending branch for the RAC. The variability of RAC stress-strain model was evaluated and the corresponding probability density function (PDF) and cumulative distribution function (CDF) were discussed. (C) 2018 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据