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材料导报  2024, Vol. 38 Issue (20): 23080244-9    https://doi.org/10.11896/cldb.23080244
  无机非金属及其复合材料 |
煤矸石骨料混凝土力学和耐久性能研究进展
于乐乐, 王爱国*, 仲小凡, 刘开伟, 潘耀辉, 肖必华, 孙道胜
安徽建筑大学,安徽省先进建筑材料重点实验室,合肥 230022
Research Progress of Mechanical and Durability Performance of Concrete with Coal Gangue Aggregates
YU Lele, WANG Aiguo*, ZHONG Xiaofan, LIU Kaiwei, PAN Yaohui, XIAO Bihua, SUN Daosheng
Anhui Key Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230022, China
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输出:  BibTeX | EndNote (RIS)      
摘要 煤矸石作为我国最多的工业固体废弃物之一,大量煤矸石露天堆放给生态环境带来巨大压力,若将其加工制备成混凝土骨料,既可解决对环境的污染,还可弥补天然砂石资源的短缺,符合绿色可持续发展理念。煤矸石骨料存在薄弱组分较多、均匀程度差等问题,这会对煤矸石混凝土性能产生较大的负面影响。本文总结了煤矸石骨料的基本特性,分析了混凝土用煤矸石骨料存在的主要问题。基于煤矸石存在的问题,本文阐述了提升煤矸石骨料性能的技术途径(如表面裹浆技术、热活化处理技术和微生物矿化技术),综述了煤矸石骨料对混凝土力学及耐久性能的影响,并提出了改善其性能的方法,以期为煤矸石骨料在混凝土中高效资源化利用提供理论和技术支持。
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于乐乐
王爱国
仲小凡
刘开伟
潘耀辉
肖必华
孙道胜
关键词:  煤矸石骨料  混凝土  力学性能  耐久性  大宗化利用    
Abstract: Coal gangue as one of the largest industrial solid waste in China, a large number of coal gangue open pile to the ecological environment has brought great pressure, if it is processed and prepared into concrete aggregate, not only can solve the pollution of the environment, but also make up for the shortage of natural sand and gravel resources, in line with the concept of green and sustainable development. The gangue aggregate has more weak components, poor uniformity and so on, which will have a greater negative impact on the performance of gangue concrete. This paper summarises the basic characteristics of gangue aggregate and analyses the main problems of gangue aggregate for concrete. Based on the problems of gangue, this paper describes the technical ways to improve the performance of gangue aggregate (such as surface wrapping technology, thermal activation treatment technology and microbial mineralisation technology), reviews the impact of gangue aggregate on the mechanics and durability of concrete, and puts forward the methods to improve its performance, with a view to providing theoretical and technical support for the efficient and resourceful use of gangue aggregate in concrete.
Key words:  coal gangue aggregate    concrete    mechanical property    durability    large-scale utilization
出版日期:  2024-10-25      发布日期:  2024-11-05
ZTFLH:  TU528  
基金资助: 国家自然科学基金(52278236;52172013); 安徽省高校优秀科研创新团队(2022AH010017); 安徽建筑大学科研储备库培育项目(2021XMK02)
通讯作者:  * 王爱国,安徽建筑大学教授、博士研究生导师。2010年毕业于南京工业大学,获材料学博士学位。2017年于澳大利亚University of Southern Queensland做访问学者。主要研究方向为高性能水泥基材料/建筑功能材料/固体废弃物综合利用。主持国家自然科学基金项目、安徽省重点研究与开发计划等省部级以上项目10余项。发表SCI、EI收录论文80余篇,获国家授权发明专利6项。wag3134@126.com   
作者简介:  于乐乐,安徽建筑大学硕士。2017年毕业于安徽理工大学,获学士学位。主要研究方向为固体废弃物综合利用。
引用本文:    
于乐乐, 王爱国, 仲小凡, 刘开伟, 潘耀辉, 肖必华, 孙道胜. 煤矸石骨料混凝土力学和耐久性能研究进展[J]. 材料导报, 2024, 38(20): 23080244-9.
YU Lele, WANG Aiguo, ZHONG Xiaofan, LIU Kaiwei, PAN Yaohui, XIAO Bihua, SUN Daosheng. Research Progress of Mechanical and Durability Performance of Concrete with Coal Gangue Aggregates. Materials Reports, 2024, 38(20): 23080244-9.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.23080244  或          http://www.mater-rep.com/CN/Y2024/V38/I20/23080244
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