摘要
再生骨料的再利用在节省天然骨料以及减少环境污染方面具有积极作用,相比较物理强化和化学强化方法,微生物矿化沉积(MICP)技术强化再生骨料具有明显的优势和广阔的前景。经MICP技术改性处理后,再生骨料和再生骨料混凝土的性能均得到显著提升。重点介绍了MICP机理及其作用下再生骨料和再生骨料混凝土性能改善效果,展望了MICP强化再生骨料技术后续进一步研究方向。
Reutilization of recycled aggregates has a positive role in saving natural aggregate and reducing environmental pollution.Compared with physical and chemical reinforcement methods,microbial induced calcium carbonate precipitation(MICP)technology to enhance the properties of recycled aggregates has obvious advantages and broad prospects.After MICP technology modification,the properties of recycled aggregate and recycled aggregate concrete were significantly improved.This paper focuses on the mechanism of MICP and the performance improvement effects of recycled aggregate and recycled aggregate concrete by using MICP technology,and prospects for the future research direction of MICP technology to enhance the performance of recycled aggregate.
作者
李旭
丁子奇
刘野
罗勉
LI Xu;DING Ziqi;LIU Ye;LUO Mian(Research Institute of Green Building Materials,College of Civil Science and Engineering,Yangzhou University,Yangzhou 225127,China)
出处
《四川建材》
2022年第8期9-11,共3页
Sichuan Building Materials
基金
国家自然科学基金青年基金项目:活性功能载体与微生物双重作用下混凝土自修复行为及机理研究(51808483)
江苏省自然科学基金青年基金项目:基于活性功能载体包裹微生物的自修复混凝土及机理(BK20180930)。
关键词
再生骨料
微生物
矿化沉积
混凝土
recycled aggregate
microbe
calcium carbonate
concrete
