再生粗骨料取代率对道路面层再生混凝土抗渗性能的影响研究  

Effect of Regenerative Aggregate Substitution Rate on the Impermeability of Recycled Concrete in Road Surface Layer

作　　者：张自荣[1] 张一蕾 翁月 苏建东 杨光 ZHANG Zi-rong(School of Civil Engineering,Changchun Institude of technology,Changchun 130012,China)

机构地区：[1]长春工程学院土木工程学院,长春130012

出　　处：《长春工程学院学报（自然科学版）》2022年第4期7-12,35,共7页Journal of Changchun Institute of Technology：Natural Sciences Edition

摘　　要：以碎石混凝土为试验材料,通过渗水高度法,比较了再生粗骨料取代率为30%和50%的再生混凝土的平均渗水高度与相对渗透系数,同时分析了再生粗骨料物理性能对再生混凝土抗渗性能的影响。试验结果表明:随着再生粗骨料取代率的增大,再生混凝土的平均渗水高度、相对渗透系数也随之增大,再生粗骨料的取代率从30%增加到50%时,再生混凝土的抗渗性能下降;与早期文献数据对比,再生粗骨料的取代率<50%时,再生混凝土抗渗性能受再生粗骨料品质不同的影响,其变化趋势存在差异。The average permeability height and relative permeability coefficient of recycled concrete with 30%and 50%recycled coarse aggregate replacement rate were compared by the permeability height method using crushed concrete as the test material,and the effect of physical properties of recycled coarse aggregate on the permeability resistance of recycled concrete was also analyzed.The test results showed that the average permeability height and relative permeability coefficient of recycled concrete increased as the replacement rate of recycled coarse aggregate increased,and the permeability resistance of recycled concrete decreased when the replacement rate of recycled coarse aggregate increased from 30%to 50%;compared with the earlier literature data,when the replacement rate of recycled coarse aggregate was lower than 50%,the permeability resistance of recycled concrete was affected by the different quality of recycled coarse aggregate,and its There is a difference in the trend of change.

关 键 词：道路面层 再生骨料取代率 再生混凝土 抗渗性 

分 类 号：TU528.041[建筑科学—建筑技术科学]