自然环境下既有混凝土的氯离子侵蚀及随机性研究  

STUDY ON CHLORIDE IONS' EROSION AND RANDOMNESS FOR EXISTING CONCRETE IN NATURAL ENVIRONMENT

作　　者：张俊芝[1] 王建泽[1] 周建民[1] 郑辉[1] 

机构地区：[1]浙江工业大学建筑工程学院,杭州310032

出　　处：《工业建筑》2009年第3期77-80,共4页Industrial Construction

基　　金：国家自然科学基金(50879079);浙江省科技计划项目(2007C23058)

摘　　要：对钱塘江河口地区感潮环境下的既有混凝土芯样中的氯离子浓度进行测定,分析侵蚀深度与氯离子浓度的关系。根据既有混凝土样本,测定既有混凝土的孔隙率,并分析氯离子扩散控制起点与孔隙率之间的关系。另外,同一深度的氯离子浓度具有较大的随机性,而且较好地符合对数正态分布。The chloride ions＇ concentrations in existing concrete in tidal estuary environment of the Qiantang River are measured, the relation between erosion depths and concentrations of chloride ions in concrete is a analyzed. Based on the samples, the porosities of existing concrete are measured, and the relations between control starting points and porosities is also studied. In addition, there is stronger randomness in distribution of chloride ions＇ concentration at the different depths of existing concrete.

关 键 词：既有混凝土 氯离子 孔隙率 随机性 

分 类 号：TU528[建筑科学—建筑技术科学]