海水侵蚀环境下混凝土耐久性的研究(英文)  

Research of Concrete Durability in the Environment with Salt Solution

作　　者：张玉敏[1] 徐新生[1] 

机构地区：[1]济南大学土木建筑学院,山东济南250022

出　　处：《中山大学学报（自然科学版）》2007年第B06期132-133,共2页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(59878031)

摘　　要：采用普通硅酸盐水泥和矿渣硅酸盐水泥,分别配制了水灰比在0.45～0.60范围内的混凝土试件,采用加速腐蚀试验研究了在海水侵蚀后,其强度、重量损失随时间变化的规律及原因,并为试件损伤状态定量化解析提供了试验数据。结果表明,在相同的试验条件下,矿渣硅酸盐水泥混凝土耐久性优于普通硅酸盐水泥混凝土;混凝土试件的抗蚀系数为0.8时与美国ASTM标准规定的强度损失25%的界限值吻合较好。Using ordinary Portland cement and Portland blastfurnaee-slag cement, the test specimens whose water cement ratio is m range from 0.45 to 0. 60 have been made. After having been corroded by seawater in accelerated corrosion experiment, based on rule and cause of changes of strength and weight loss rate, experiment data has been provided for quantitative analysis of broken state. It has been showed that under the condition, durability of Portland blastfurnace-slag cement is better than that of ordinary Portland cement; when the corrosive coefficient of concrete member is 0. 8, it is in conformity with limit value of 25% strength loss in American ASTM standard

关 键 词：海水 混凝土 水灰比 耐久性 加速腐蚀试验 

分 类 号：TU502[建筑科学—建筑技术科学]