潮差环境下砂浆氯离子侵蚀对流区厚度的随机性  

Randomness of Convection Region Thickness of Mortar Chloride Ion Erosion in Tidal Range Environment

作　　者：黄俊[1] 张昀[1] 张杉[2] 庄华夏[2] 周巧萍[2] Huang Jun Zhang Yun Zhang Shan Zhuang Huaxia Zhou Qiaoping(College of Civil Engineering, Tongji University, Shanghai 200092, China College of Architecture ＆ Civil Engineering, Zhejiang University of Technology, Hangzhou Zhejiang 310014, China)

机构地区：[1]同济大学土木工程学院,上海200092 [2]浙江工业大学建筑工程学院,浙江杭州310014

出　　处：《港工技术》2016年第5期1-4,共4页Port Engineering Technology

基　　金：国家自然科学基金项目(51279181)

摘　　要：通过自然海洋潮差环境下砂浆氯离子侵蚀的现场试验,根据测试得到的砂浆中的自由氯离子浓度分布情况,分析了砂浆中氯离子侵蚀对流区厚度的随机性。结果表明,在自然潮差环境下,砂浆均出现了氯离子侵蚀的对流区;砂浆中氯离子侵蚀对流区厚度均值为4~6 mm;可用正态分布描述砂浆的氯离子侵蚀对流区厚度的随机性;暴露时间、掺合料及水灰比等对其随机特性的影响不明显。Based on the field test of mortar chloride ion erosion in natural tidal range environment, the concentration distribution of free chloride ions in mortar is used to analyze the randomness of convection region thicknesses of chloride ion erosion in mortar. The analysis results show the occurrence of convection region of mortar chloride ion erosion in natural tidal range environment, and the mean thickness of convection regions is 4~6 mm. The randomness of convection region thickness can be described by normal distribution. The exposure time, admixtures and water-cement ratio have no obvious influence on the randomness of convection region thickness.

关 键 词：潮差环境 砂浆 氯离子 对流区 随机性 

分 类 号：TV43[水利工程—水工结构工程]