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0.450.60的混凝土试件,采用加速腐蚀试验研究了在盐溶液侵蚀后,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.
By use of common Portland cement and Portland cement,the test specimens,whose water cement ratio is in the range 0.45 to 0.60,were made. After having been corroded by seawater in accelerated corrosion experiment,based on the rule and cause of changes of strength and weight loss rate,experimental data has been provided for quantitative analysis of broken state.The result shows that under the same condition,durability of slag Portland cement is better than that of Portland cement;and when the corrosive coefficient of concrete member is equal to 0.8,it is in conformity with limit value of 25 percent strength loss in American ASTM standard.
出处
《应用科技》
CAS
2003年第10期55-58,共4页
Applied Science and Technology
关键词
混凝土结构
耐久性
加速腐蚀试验
盐溶液
配合比
salt solution
concrete
water cement ratio
durability
accelerated corrosion experiment.
