水工混凝土氯离子渗透性影响因素研究  

The Research on the Influencing Factors of Chloride Ion Permeability in Hydraulic Concrete

作　　者：朱晓映 武利强 王豪斌 虞国华 ZHU Xiaoying;WU Liqiang;WANG Haobin;YU Guohua(Rui'an Water Conservancy Comprehensive Management Center,Rui'an 325200,Zhejiang,China;Zhejiang Institute of Hydraulics and Estuary(Zhejiang Institute of Marine Planning and Design),Hangzhou 310017,Zhejiang,China;Xinchang County Water Resourcesand Hydropower Bureau,Xinchang 312500,Zhejiang,China)

机构地区：[1]瑞安市水利综合管理中心,浙江瑞安325200 [2]浙江省水利河口研究院(浙江省海洋规划设计研究院),浙江杭州310017 [3]新昌县水利水电局,浙江新昌312500

出　　处：《浙江水利科技》2024年第5期43-48,共6页Zhejiang Hydrotechnics

基　　金：浙江省省属科研院所扶持专项(ZIHEYS22002);浙江省水利重大科技计划项目(RA2104)。

摘　　要：采用电量法试验系统研究了龄期、水胶比、粉煤灰掺量及养护条件对水工混凝土氯离子渗透性的影响,以通电量指标反映氯离子渗透性,通电量越大,氯离子渗透性越强。根据实际工程情况,利用人工气候模拟室模拟标准养护、夏季高温养护、冬季低温养护和自然养护4种养护条件。研究结果表明,龄期、水胶比、粉煤灰掺量及养护条件4个因素均对混凝土通电量有较大影响,且具有较好的规律性。The Electricity Method was used to study the effects of age,water cement ratio,fly ash content,and curing conditions on the chloride ion permeability of hydraulic concrete.The permeability of chloride ions is reflected by the electricity consumption index.The higher the electricity consumption,the stronger the permeability of chloride ions.Based on the actual engineering situation,four maintenance conditions were simulated using an artificial climate simulation room,including standard maintenance,high temperature maintenance in summer,low temperature maintenance in winter,and natural maintenance.The research results indicate that the above four factors have a significant impact on the electrical conductivity of concrete and have good regularity.

关 键 词：水工混凝土 氯离子渗透性 电量法 影响因素 人工气候模拟 

分 类 号：TV431[水利工程—水工结构工程] TU528[建筑科学—建筑技术科学]