沙牌水电站拱坝碾压混凝土基质-骨料界面特性及微观机理研究  

Shapai Hydroelectric Power Station Arch Dam RCC Matrix-Aggregate Interface Properties & Micromechanism Study

作　　者：杨忠义[1] 

机构地区：[1]国家电力公司成都勘测设计研究院科研所,四川成都610072

出　　处：《水电站设计》2003年第4期47-54,共8页Design of Hydroelectric Power Station

基　　金：九五"国家重点科技攻关项目(96-220-02-01-05);(96-220-02-01-07)

摘　　要：在对沙牌碾压混凝土拱坝所使用的低脆性水泥与花岗岩骨料性能试验研究的基础上,借助微观测试手段,对不同水泥品种与骨料岩性的碾压混凝土的基质-骨料界面特性与基质水化产物形貌进行了系统的测试与分析,进而探讨了其界面效应与微观机理,并从碾压混凝土宏观性能对微观机理给予了验证。Based on property tests of low fragibility cement & granite aggregate used for Shapai RCC arch dam construction,by means of microscopic measurement matrixes of RCC with various kinds of cement & different litholgic aggregates-aggregate interface properties & shapes of matrix hydration products were systematically measured & analysed to inestigate their interface effect & micromechanism.Besides,the mieromechanism was demonstrated from macroscopic behaviors of the RCC.

关 键 词：沙牌水电站 拱坝 碾压混凝土 骨料 界面效应 弹性模量 极限拉伸 除变度 

分 类 号：TV431[水利工程—水工结构工程]