内掺金属皂类防水剂对混凝土防水和抗氯离子效果研究  

Water resistance and anti-chloride penetration of integral water repellent concrete with addition of metal soaps

作　　者：姜蓉[1] 张鹏[1] 赵铁军[1] 王龙军[1] 

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033

出　　处：《新型建筑材料》2010年第9期61-64,共4页New Building Materials

基　　金：国家自然科学基金重点项目(50739001);国家"十一五"科技支撑计划项目(2006BAJ02B04);教育部博士点基金项目(20070429001)

摘　　要：通过抗压强度、毛细吸水系数、氯离子侵入以及混凝土内部硬脂酸盐含量等指标对金属皂类防水剂的防护效果进行研究。结果表明,金属皂防水剂硬脂酸盐具有较高的防水性能,掺量宜在0.1%～1.0%;内掺金属皂防水剂能够降低混凝土的毛细吸水系数64%以上;同类型金属皂防水剂相对比,掺量为1.0%的混凝土比掺量为0.5%的混凝土氯离子渗透量要小,从而有较强的抵抗氯离子侵蚀的能力。In this paper, the effect of metal soaps has been investigated through compressive strength test,capillary suction coefficient test,chloride ion penetration test and stearate content test and so on. The results indicate that metal soaps which are the admixture of metal stearates have a high water resistance. The proper mix ratio is 0.1%-1.0%. The reduction of capillary suction coefficient is more than 64%. In addition,compared with the same type of metal soaps, 1.0% addition of metal soap showed better anti-chloride penetration than 0.5% addition, both can restrain chloride from penetrating into concrete significantly.

关 键 词：防水混凝土 金属皂类防水剂 氯离子含量 毛细吸水系数 

分 类 号：TU572[建筑科学—建筑技术科学]