Research and Application Status and Development Trend of Alkali-Activated Binder Powder for Mine Backfill  

作　　者：Qian Zhou Yueyue Zhang Juanhong Liu Aixiang Wu Hongjiang Wang 

机构地区：[1]School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing,100083,China [2]Key Laboratory of the Ministry of Education of China High-Efficient Mining and Safety of Metal Mines,Beijing,100083,China [3]Beijing Key Laboratory of Urban Underground Space Engineering,Beijing,100083,China

出　　处：《Journal of Renewable Materials》2022年第12期3185-3199,共15页可再生材料杂志（英文）

基　　金：This work was financially supported by the Beijing Municipal Natural Science Foundation(No.2204087);This research was also supported by grants from the National Natural Science Foundation of China(No.51834001).

摘　　要：To improve the economic and social benefits of mining and backfill,it is necessary to find the backfill materials suitable for mineral mining,improve the various properties of the filling materials,and develop low cost,high performance new filling materials.Portland cement is neither environmentally friendly nor economical.Currently,we have begun to study and apply some industrial waste,such as slag,fly ash,and other solid wastes,with certain activities as the primary component of cementing material that will not only meet the technical requirements of filling,but also comprehensively utilize industrial waste and possess a benign,sustainable lifecycle for environmental protection.This study expounds the composition and reaction mechanism of alkali-activated binder powder used for cemented paste backfill material,summarizes the research and application status of alkaliactivated binder powders,including mechanics,durability,economic and environmental,and discusses future development directions for mine binder powders.It needs to continue to expand the utilization range of solid waste and improve the utilization rate of solid waste in the future.The development and research of this binder powder plays an important role in the progress of filling technologies.Hence,the research about alkali-activated binder powder contains great development potential and broad prospects.

关 键 词：Mine backfill paste industrial waste binder powder green environmental protection 

分 类 号：TD85[矿业工程—金属矿开采]