微坍落度混凝土在玄庙观碾压混凝土拱坝应用研究  

Application of micro-slump concrete in the Xunmiaoguan arch dam of RCC

作　　者：杨天生[1] 金琼[1] 许颜军[1] 

机构地区：[1]中水北方勘测设计研究有限责任公司,天津30022

出　　处：《混凝土》2008年第9期77-81,共5页Concrete

摘　　要：通过对微坍落度混凝土强度、变形及耐久性能进行系统地研究,并与常态混凝土、碾压混凝土及流态混凝土性能进行比较,同时,通过利用扫描电镜(SEM)、能谱分析(EDXA)、压汞测孔等手段,对其水化产物及孔结构等微观性能进行分析研究,以探讨提高碾压混凝土坝面防渗的新途径。The stregth,deformation,durability of the micro -slump concrete are studied.The ability of the routine concrete,RCC and flowing concrete are confered.and microscopic performance of hydration products and pore structure are analyzed and studied by SEM, EDXA and mercury pressure porosimeter method, the new approach of RCC dam face seepage prevention is analyzed and studied.

关 键 词：微坍落度混凝土 VC值 VB值 耐久性 微观性能 

分 类 号：TU528.52[建筑科学—建筑技术科学]