Influencing factors and optimization on mechanical performance of solid waste-derived rapid repair mortar
作者机构：The National Engineering Laboratory of Coal-Fired Pollutants Emission ReductionShandong University17923 Jingshi RoadJinanShandongChina
出 版 物：《Waste Disposal and Sustainable Energy》 (废弃物处置与可持续能源（英文）)
年 卷 期：2023年第5卷第2期
页 面：223-234页
核心收录：
学科分类：0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0903[农学-农业资源与环境] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0814[工学-土木工程]
基 金：National Key R&D Program of China(No.2020YFC1910000) the Shandong Natural Science Foundation Youth Project(No.ZR2020QE201)
主 题：Rapid repair mortar Solid-waste-based sulfoaluminate cement Ordinary Portland cement Pilot production Gold tailing sand Environmental friendliness
摘 要：There is a great demand for high performance rapid repair mortar(RRM)because of the wide use of cement ***-waste-based sulfoaluminate cement(WSAC)is very suitable as a green cementitious material for repair materials because of its characteristics of high early-age strength and short setting ***,the influence and optimization of various factors of WSAC-based RRM,such as water-to-RRM ratio,binder-to-sand ratio and additives,as well as the further solid waste replacement of aggregate,remain to be *** paper comprehensively studied the influence of the above factors on the performance of WSAC-based RRM and obtained a green high-performance RRM by optimizing these *** experimental results showed that the early and late strength of the obtained RRM is excellent,and the setting time and fluidity are appropriate,which reflected good mechanical properties and construction *** Portland cement(OPC)doping could not improve RRM *** was feasible to prepare RRM with gold tailing sand replacing part of the quartz *** paper provides data and a theoretical basis for the preparation of high-performance RRM based on solid waste,expanding the high value utilization of solid waste,which is conducive to the development of a low carbon society.
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