Service life prediction of recycled concrete based on freezing-thawing damage parabola model

被引：0
|
作者：
Wang L. [1 ]
Wang Z. [1 ]
Cui Z. [2 ]
机构：
[1] School of Hydraulic and Engineering, Dalian University of Technology
[2] College of Civil and Architecture Engineering, Liaoning Technical University
来源：
Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering | 2011年 / 19卷 / 01期
关键词：
Damage parabola model; Recycled aggregate; Service life prediction;
D O I：
10.3969/j.issn.1005-0930.2011.01.004
中图分类号：
学科分类号：
摘要：
Freezing-thawing damage in concrete not only affect appearance of concrete, normal operation of engineering, but also shorten the safety and service life-span. Damage parabola model(DPM) is presented in concrete by the principles of damage mechanic with relative dynamic modulus loss as damage variable, and the DPM is validated by previous work. According to contrast experiment, the process of freezing-thawing damage is analysis in C40 recycled aggregate concrete, and its service life prediction is predicted based on DPM. The study show that DPM has higher precision which satisfies the demand of application in engineering, and the service life of recycled aggregate concrete can research to 50 years durability design index.
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页码：29 / 35
页数：6
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