摘要
对目前国内再生混凝土弹性模量试验结果进行了搜集整理,建立了再生混凝土弹性模量数据库。在此基础上,分析了再生混凝土弹性模量的基本特征,探讨了普通混凝土弹性模量计算公式对于再生混凝土的适用性。研究结果表明,普通混凝土弹性模量计算公式不适用于再生混凝土;基于试验数据的统计分析,建议了再生混凝土弹性模量的计算公式,该公式计算结果与试验结果吻合良好。利用给出的计算公式,对各强度等级再生混凝土弹性模量的取值给出了建议。
Based on the collection of present available test results in China, a database was established to evaluate the properties of for the modulus of elasticity for recycled aggregate concrete. The suitability of the equation for the modulus of elasticity of normal concrete to recycled aggregate concrete was studied. It was found that the equation for normal concrete overestimates the modulus of elasticity for recycled aggregate concrete. A new equation for the modulus of elasticity of recycled aggregate concrete was proposed on the basis of a regression analysis of the collected test results. The new equation agrees with the test results well. The values of the modulus of elasticity for various strength grade recycled aggregate concrete are obtained using the new equation developed in this paper.
出处
《建筑技术开发》
2007年第2期43-45,共3页
Building Technology Development
关键词
再生混凝土
弹性模量
统计分析
Recycled aggregate concrete
Modulus of elasticity
Statistical analysis
