自密实混凝土剪切变稠和剪切变稀行为研究进展  

Research Progress on Shearing Thickening and Shearing Thinning of Self-compacting Concrete

作　　者：黄法礼 李化建[1,2] 易忠来 王振[1,2] 谢永江 HUANG Fali;LI Huajian;YI Zhonglai;WANG Zhen;XIE Yongjiang(China Academy of Railway Sciences,Beijing 100081;State Key Laboratory for Track Technology of High-Speed Railway,Beijing 100081)

机构地区：[1]中国铁道科学研究院,北京100081 [2]高速铁路轨道技术国家重点实验室,北京100081

出　　处：《材料导报》2017年第A01期392-395,401,共5页Materials Reports

基　　金：国家自然科学基金(51378499;51308546);铁道科学技术研究发展中心项目(J2015G007);中国铁路总公司科技开发计划项目(2015G001-H)

摘　　要：以工作性能著称的自密实混凝土在生产和施工过程中表现出剪切变稠和剪切变稀现象。鉴于剪切变稠和剪切变稀行为对自密实混凝土施工过程和施工质量的显著影响,总结了自密实混凝土剪切变稠和剪切变稀行为的研究历程,阐述了自密实混凝土剪切变稠和剪切变稀的产生机制,比较了自密实混凝土剪切变稠和剪切变稀的表征方法,分析了自密实混凝土剪切变稠和剪切变稀行为的影响因素,探讨了自密实混凝土剪切变稠和剪切变稀行为的研究前景。In the process of production and construction,the self-compacting concrete(SCC),known for its workability performance,exhibits a shear thickening and shear thinning phenomenon.In view of the significant influence of shear thickening and shear thinning behavior on the construction process and construction quality of SCC,the research development of shear thickening and shear thinning behavior of SCC is summarized.The mechanism of shear thickening and shear thinning of SCC is described.The characterization methods for shear thickening and shear thinning of SCC are compared.The influence factors of shear thickening and shear thinning behavior of SCC are analyzed.The research prospects of shear thickening and shear thinning behavior of SCC are discussed.

关 键 词：自密实混凝土 剪切变稠 剪切变稀 

分 类 号：TU521.4[建筑科学—建筑技术科学]