再生微粉在水泥基材料中的应用与研究进展  

Application and Research Progress of Recycled Micro-powders in Cement-Based Materials

作　　者：周长顺[1,2] 吉红波 赵丽颖 ZHOU Chang-shun;JI Hong-bo;ZHAO Li-ying(Yuanpei College,Shaoxing University,Shaoxing 312000,China;School of Civil Engineering,Central South University,Changsha 430100,China;Zhejiang Zhongcheng Construction Engineering Group Co.,Ltd.,Shaoxing 312000,China)

机构地区：[1]绍兴文理学院元培学院,绍兴312000 [2]中南大学土木工程学院,长沙430100 [3]浙江中成建工集团有限公司,绍兴312000

出　　处：《硅酸盐通报》2019年第8期2456-2463,共8页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(41572305)

摘　　要：再生微粉是再生骨料生产过程中的细微颗粒,其含有大量的SiO 2和Al 2O 3,具有作为辅助胶凝材料的应用潜力。因其火山灰活性和微集料填充效应可以显著改善水泥基材料性能,已经成为节能环保材料在水泥混凝土领域的关注热点。介绍了再生微粉的物理化学特性和水化活性潜质,以及对水泥基材料工作性、力学性能和耐久性的影响,综述了其对水泥基材料性能的作用机理,分析了当前研究存在的问题,指出了再生微粉水泥基材料的发展趋势。Recycled micro-powder is a fine particle from the production of recycled aggregate,but it is rich in active SiO 2 and Al 2O 3,and has great application potential as supplementary cementitious additives.Recycled micro-powder has been a focus of the concrete field,because it can improve the performance of cement-based materials for its strong pozzolanic activity and micro-aggregate filling effect.The physical-chemical characteristics and potential hydration activity are described and summarized.The influence of recycled micro-powder on the hydration,workability,mechanical properties and durability of cement-based materials,are reviewed.The mechanism of its effect on the performance of cement-based materials is introduced.The existing problems in the study are analyzed,and the development trend of cement-based materials with recycled micro-powder is pointed out.

关 键 词：再生微粉 水泥基材料 力学性能 作用机理 

分 类 号：TU528[建筑科学—建筑技术科学]