建筑垃圾再生骨料路用性能研究  

Research on the Pavement Performance of Recycled Aggregate for Construction Waste

作　　者：樊兴华[1] 薛振华[1] FAN Xing-hua;XUE Zhen-hua(Department of Road and Bridge Engineering,Shaanxi Institute of Railway Engineering Technology,Weinan 714099,China)

机构地区：[1]陕西铁路工程职业技术学院道桥工程系,渭南市714099

出　　处：《公路》2020年第10期40-45,共6页Highway

基　　金：陕西省渭南市2018年度科研重点研发计划项目,项目编号ZDYF-JCYJ-92_zsg;陕西铁路工程职业技术学院2019年中青年科技创新人才计划,项目编号KJRC201908。

摘　　要：为缓解石材资源短缺问题,将建筑垃圾进行资源化利用,分别选取砖混结构建筑垃圾处置后产生的再生砖石、框架结构及混凝土工程拆除的建筑垃圾处置后产生的再生碎石这两种再生骨料进行技术指标研究。为验证再生骨料无机结合料修建的路面基层具有足够的强度、刚度和稳定性,设计了几组不同配合比的石灰粉煤灰稳定再生材料、水泥稳定再生材料,对其力学性能、抗冻性能以及抗冲刷性能等路用性能进行评价,得出石灰∶粉煤灰∶再生砖石=7∶13∶80的配合比并外掺1%水泥,以及5.0%水泥剂量水泥稳定再生砖石的综合路用性能较好。In order to alleviate the shortage of stone resources and make use of construction waste,the recycled brick and frame structure generated by brick-concrete structure construction waste and the recycled gravel produced by concrete structures after being dismantled are selected for technical study.In order to verify that the pavement base built by recycled aggregate inorganic mixture has sufficient strength,stiffness and stability,several groups of lime fly ash stable recycled materials with different mix ratios are designed.The mechanical properties,frost resistance and scour resistance of cement stable recycled materials are evaluated.It is concluded that the mixture ratio of lime:fly ash:recycled brick=7∶13∶80,and the comprehensive road performance of 5.0%cement dosage is better than that of 1%cement and cement stabilized recycled brick.

关 键 词：建筑垃圾 再生骨料 路用性能 稳定性 

分 类 号：U416.26[交通运输工程—道路与铁道工程]