北京建筑大学学报2025，Vol.41Issue(4)：36-44,9.DOI:10.19740/j.2096-9872.2025.04.05
再生骨料预拌对透水混凝土性能的影响与优化
Influence and Optimization of Recycled Aggregate Pre-mixing on the Performance of Pervious Concrete
摘要
Abstract
This study aims to investigate the effects of pre-mixing recycled aggregate on its abrasion and crushing characteristics,as well as on the properties of pervious concrete,and to optimize the mix design.Recycled aggregates with particle sizes of 5-10 mm and 10-20 mm were adopted.The influence of pre-mixing time on the properties of both the recycled aggregate and the resulting pervious concrete was studied.Based on the abraded fines generated,the mix design of pervious concrete was optimized using two methods:the"void replacement method"and the"paste replacement method".Finally,pore characteristic analysis was performed using image analysis combined with MATLAB software.The results indicate that:with increasing pre-mixing time,the crushing rate and abrasion rate of the recycled aggregate gradually increased,while the water permeability of the pervious concrete decreased;The two replacement methods exhibited differences in their effect on the compressive strength of pervious concrete made with different-sized recycled aggregates,but both methods effectively improved the water permeability.关键词
再生骨料/预拌/透水混凝土/配合比优化Key words
recycled aggregates/pre-mixing treatment/pervious concrete/mix ratio optimization分类
建筑与水利引用本文复制引用
周文娟,周明丽,宋永远,杨灿,赵翰第..再生骨料预拌对透水混凝土性能的影响与优化[J].北京建筑大学学报,2025,41(4):36-44,9.基金项目
科技部国家重点研发计划(2022YFC3803403). （2022YFC3803403）
