摘要
该文论述了在对再生骨料混合料级配进行调整的基础之上,研究再生骨料不同掺量下基层混合料的力学性能。试验结果表明:随着再生骨料掺量增加,水泥稳定再生骨料混合料的无侧限抗压强度、劈裂强度和抗压回弹模量均呈现增加的趋势,在再生骨料掺量75%附近点均出现峰值,通过线性回归分析,三个强度指标存在很好的线性相关性,相关系数都在0.9以上。
The article discusses and studies the mechanical performance of the base mixture under the different admixing amounts of recycled aggregate on the basis of adjusting the gradation of recycled aggregate mixture. The experimental results show that the unconfined compressive strength, the split-tensile strength and the compressive resilience modulus of cement stabilized recycled aggregate mixture will present the increasing trend with the increment of the recycled aggregate admixture. The peak value will be all at the point near 75% of the recycled aggregate admixture. Through the linear regression analysis, three strength indexes have a good linear dependence relation, and the related coefficients are all over 0.9.
出处
《城市道桥与防洪》
2009年第8期194-197,共4页
Urban Roads Bridges & Flood Control
基金
广东省公路局科技攻关计划项目(2006-11)
关键词
再生骨料
无侧限抗压强度
劈裂强度
抗压回弹模量
recycled aggregate, unconfined compressive strength, split-tensile strength, compressive modulus of resilience
