大流动性再生骨料混凝土试验研究  

Experimental study on high mobility recycled aggregate concrete

作　　者：徐宝军 赵欢 刘海园 李旭旭 李明 孟宏睿[1] Xu Baojun;Zhao Huan;Liu Haiyuan;Li Xuxu;Li Ming;Meng Hongirui(College of civil Engineering and Architecture,Shaanxi University of Technology, Hanzhong 723000, China)

机构地区：[1]陕西理工大学土木工程与建筑学院,陕西汉中723000

出　　处：《山西建筑》2019年第6期81-83,共3页Shanxi Architecture

基　　金：2018年地方高校国家级大学生创新创业训练计划项目(201824043)

摘　　要：通过以废砖骨料按不同体积取代率取代废弃混凝土骨料配制大流动性再生骨料混凝土,对再生骨料混凝土骨料级配及大流动性再生骨料混凝土的表观密度、立方体抗压强度和劈裂强度进行试验研究。结果表明,随着取代率的增大表观密度呈现下降趋势,立方体抗压强度与劈裂强度大致为下降趋势,当取代率在40%～60%时立方体抗压强度、劈裂强度略有回升,废砖骨料与再生混凝土骨料比值为6∶4时立方体抗压强度和劈裂较高,且容重较低,为建筑垃圾再利用的进一步研究提供一定的参照。By using waste brick aggregate according to different size to replace rate instead of waste concrete aggregate liquidity recycled aggregate concrete,the recycled aggregate concrete aggregate gradation,and a large liquidity apparent density of recycled aggregate concrete,cube compressive strength and splitting strength experiment research. The results show that with the increase of the apparent density showed a trend of decline,cube compressive strength and splitting strength roughly a downward trend,when replace rate was 40% ~ 60% when the cube compressive strength,splitting strength slightly rebounded,waste brick aggregate and recycled concrete aggregate ratio of 6∶ 4 cube compressive strength and splitting is higher,and lower bulk density,is an advantage in terms of heat preservation and heat insulation.

关 键 词：废砖骨料 再生混凝土骨料 掺配比例 力学性能 

分 类 号：TU502[建筑科学—建筑技术科学]