氯化钠溶液对混凝土抗冻性的影响  

EFFECT OF SODIUM CHLORIDE SOLUTION ON FROST RESISTANCE OF CONCRETE

作　　者：魏广和 张玉生[2] 慕儒[3] 

机构地区：[1]宁夏隆德县城乡建设局,隆德756300 [2]铁道部第四勘测设计院,武汉430063 [3]江苏省建筑科学研究院,南京210008

出　　处：《工业建筑》2001年第10期50-53,共4页Industrial Construction

基　　金：国家自然科学基金资助项目 (编号 :5 993 8170 )

摘　　要：进行了混凝土在 3 5 %盐溶液中快速冻融的试验研究 ,结果表明 ,混凝土在盐溶液中冻融时重量损失大幅度增加 ,而相对动弹性模量下降略为缓慢。根据试验结果 。The frost resistance of concrete immersed in 3^5% sodium chloride solution was investigated. Compared to freezing and thawing in fresh water, the weight loss increased significantly when freezing and thawing in NaCl solution. The decrease of relative dynamic modulus of elasticity exhibited a slight slow in solution. According to the experimental results, both the weight loss and relative dynamic modulus of elasticity should be considered when determining the durability factor of concrete.

关 键 词：抗冻性 冻融循环 混凝 耐久性 除冰盐 氯化钠 

分 类 号：TU528.042[建筑科学—建筑技术科学]