市政技术2024，Vol.42Issue(5)：17-24,8.DOI:10.19922/j.1009-7767.2024.05.017
基于不同类型建筑垃圾再生料的可控性低强材料配制研究及应用
Study on Production & Application of Controlled Low Strength Material Based on Different Recycled Materials of Construction Waste
摘要
Abstract
In order to solve the problem of insufficient consumption of low-quality recycled materials of construction waste,the feasibility of controlled low strength materials(CLSM)prepared by recycled fine aggregate and slag soil of waste mixture,recycled materials and slag soil of brick mixture respectively were studied.The working perfor-mance and mechanical properties of the CLSM prepared with four types of recycled materials were tested,and the material cost analysis and pilot project application were carried out.The results show that the CLSM have an out-of-machine expansion of 595～790 mm,a 120-min expansion of 330～570 mm,a slump of over 200 mm,and a 28-d compressive strength of 0.8～2.1 MPa,which can meet the general requirements of backfilling projects.That is,all the four types of recycled materials can be used to prepare CLSM.Considering the performance and cost factors,the CLSM prepared with two types of waste soil have more bright prospects.关键词
低品质建筑垃圾再生料/可控性低强材料/工作性能/力学性能Key words
low-quality recycled material of construction waste/controlled low strength material(CLSM)/working property/mechanical property分类
土木建筑引用本文复制引用
王建刚,王鸣岐,李昱秀,王海波,虞晓婧..基于不同类型建筑垃圾再生料的可控性低强材料配制研究及应用[J].市政技术,2024,42(5):17-24,8.基金项目
国家重点研发计划项目(2020YFC1909904) （2020YFC1909904）
