渗透型表面处理技术对混凝土性能的影响  

Effects of permeable surface treatment technology on concrete performance

作　　者：李化建[1,2] 易忠来[1,2] 谢永江[1,2] 

机构地区：[1]中国铁道科学研究院铁道建筑研究所,北京100081 [2]高速铁路轨道技术国家重点实验室,北京100081

出　　处：《混凝土》2011年第12期129-130,138,共3页Concrete

基　　金：铁道部科技开发计划项目(2008G031-N);中国铁道科学研究院行业服务技术创新项目(2009YJ21)

摘　　要：对比研究了液体硅烷、膏体硅烷以及渗透结晶材料等3种渗透型表面处理技术对混凝土抗压强度、吸水率、氯离子吸收降低率、抗氯离子渗透性以及抗冻性的影响。结果表明:3种渗透型表面处理技术对混凝土抗压强度略有提高,对混凝土吸水率和氯离子吸收降低率显著降低,对混凝土抗氯离子渗透性显著提高,即电通量降低。液体硅烷与膏体硅烷表面处理技术对混凝土性能的改善程度相当,优于渗透结晶材料表面处理技术;硅烷表面处理技术在一定程度上可以改善混凝土的抗冻性。Effects of three permeable surface treatment technologies,liquid silane,paste silane and capillary crystalline material on compressive strength, water absorption, debasing ratio of chloride ions absorption, penetration resistance of chloride ions and anti-freeze of concrete have been studied in this paper.The results show that the compressive strength is improved slightly, the water absorption and the debasing ratio of chloride ions absorption are greatly reduced.The penetration resistance of chloride ions is improved markedly which can be proved by passed electric charge.The improvement of liquid silane liquid permeable surface treatment technology to concrete performance equals to that of paste silane paste and is superior to that of capillary crystalline.The permeable surface treatment technology of silane can improve frost resistance of concrete to some degree.

关 键 词：渗透型 表面处理 混凝土 硅烷 渗透结晶材料 

分 类 号：TU528.01[建筑科学—建筑技术科学]