粉煤灰混凝土极限拉伸值影响因素试验研究  

Experimental research on factors of fly ash concrete sultimate tensile

作　　者：鲍永龙 

机构地区：[1]黄河上游水电开发有限责任公司工程建设分公司,青海西宁810000

出　　处：《混凝土》2015年第10期95-98,共4页Concrete

基　　金：国家"十一五"科技支撑计划重点项目(2006BAD-11B03)

摘　　要：为了探究影响粉煤灰混凝土极限拉伸值的若干因素,采用控制变量法对混凝土试块进行了轴心受拉试验研究。研究结果表明:水泥品种对粉煤灰混凝土极限拉伸值有一定影响;水胶比和砂率的变化能够影响混凝土极限拉伸值;增加粉煤灰掺量可以提高粉煤灰混凝土极限拉伸值。研究成果对后续工程提高混凝土极限拉伸值提供了理论依据。In order to explore the several factorseffectingultimate tensile of fly ash concrete, it used the method of controlling variables on the concrete block to go on the tensile test research.The results showed that cement varieties had certain influence on the fly ash concrete ultimate tension. Changes of water binder ratio and sand ratio will impact ultimate tensile of concrete. Increasing the amount of fly ash can improve the ultimate tensile strain of fly ash concrete.The research results provide a theoretical basis for the follow-up engineering to improve the ultimate tension of concrete.

关 键 词：粉煤灰混凝土 极限拉伸 影响因素 试验研究 

分 类 号：TU528.04[建筑科学—建筑技术科学]