低强度流态填筑材料的研究现状及展望  

Current Research and Prospect of Low Strength Flowable Filling Materials

作　　者：周永祥 霍孟浩 侯莉 陈枝东 张领帅 ZHOU Yongxiang;HUO Menghao;HOU Li;CHEN Zhidong;ZHANG Lingshuai(College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China;China Concrete&Cement Products Association Geotechnical Stabilization and Solidification Technology Branch,Beijing 100831,China;China Academy of Building Research,Beijing 100013,China;China Association of Urban Environmental Committee of Construction Waste Management and Recycling,Beijing 100037,China;Shenzhen Hongyeji Geotechnical Technology Co.,Ltd.,Shenzhen 518057,Guangdong,China)

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]中国混凝土与水泥制品协会岩土稳定与固化技术分会,北京100831 [3]中国建筑科学研究院有限公司,北京100013 [4]中国城市环境卫生协会建筑垃圾管理与资源化工作委员会,北京100037 [5]深圳宏业基岩土科技股份有限公司,广东深圳518057

出　　处：《材料导报》2024年第15期126-134,共9页Materials Reports

基　　金：国家自然科学基金(52378213);国家重点研发计划(2023YFE0199600)。

摘　　要：管廊肥槽、建筑物深基坑、矿山采空区、桥涵台背等施工过程常需要进行回填作业,流态填筑材料回填是一项有发展前景的技术,在不同行业中存在应用场合、性能要求、施工方法、材料组成乃至术语称谓等方面的显著差异。本文在梳理前人研究的基础上,提出“低强度流态填筑材料”的概念,并详细阐述了其基本特点。同时,对矿山胶结充填材料、可控低强度材料、流态固化土等材料的发展与现状进行了综述,并根据常见的基料粒径范围,对多种类型的低强度流态填筑材料作出了相对性的区分。低强度流态填筑材料是一类组成多样、用途广泛的工程材料,具有突出的包容性和绿色低碳特征,可以据此建立多种废弃物协同处置的技术体系。然而,目前这类材料存在用水量大、组成和性能差异性大、测试方法不统一等主要问题。因此,提升低强度流态填筑材料的性能、扩展其应用领域,是行业未来发展的重要方向。Backfilling is often required in the construction process of pipe corridors,deep pits,mining areas,bridge culverts,etc.,and backfilling with flowable filling materials is a promising technology.Flowable filling materials have significant differences in application occasions,performance requirements,construction methods,material composition and even terminology in different industries.Based on previous studies,this paper puts forward the concept of‘low strength flowable filling materials’and elaborates its basic characteristics.At the same time,the development and current status of mine cemented fill materials,controlled low strength materials,and flowable solidified soils are reviewed,and a relative distinction is made between various types of low strength flowable filling materials based on the range of common base material particle sizes.Low strength flowable filling materials are a class of engineering materials with diverse compositions and wide applications.They have outstanding inclusiveness and green and low carbon characteristics.Based on this,a technical system for co-processing of various wastes can be established.However,at present,such materials have major problems such as large water consumption,large differences in composition and performance,and non-uniform testing methods.Therefore,improving the performance of low strength flowable filling materials and expanding their application fields are important directions for the future development of the industry.

关 键 词：低强度流态填筑材料 固化土 低强度 回填 固废利用 

分 类 号：X705[环境科学与工程—环境工程]