再生骨料性能强化研究进展

Research Progress on Performance Enhancement of Recycled Aggregates

混凝土材料作为基础建设的大宗材料,其用量相当大。随着社会的发展,环保、节能、资源循环再利用等已经引起人们的高度重视。因此,需全面提高建筑材料资源的可循环利用。本文结合国内外再生骨料的质量等级划分、基本性能、强化方式等研究现状,综述了再生骨料目前的质量等级划分标准、再生骨料基本性能指标评价及其性能的物理强化、化学强化和微生物强化方法,并分析了目前存在的问题和进一步需要研究的方向。

As a bulk material for infrastructure construction,concrete materials are used in considerable quantities.With the development of society,environmental protection,energy saving,resource recycling have attracted great attention.Therefore,it is necessary to comprehensively improve the recycling utilization of building material resources.Based on the research status of quality grade classification,basic performance and enhancement methods of recycled aggregates at home and abroad,this paper reviews the current quality grade classification standards,the evaluation of basic performance indicators of recycled aggregates and the physical enhancement,chemical enhancement and microbial enhancement methods of recycled aggregates,and analyzes the existing problems and further research directions.