硅烷膏体浸渍剂在保护混凝土中的实际应用  

The application of silane impregnation in protecting concrete

作　　者：吴平 Dr.Heinz Geich 

机构地区：[1]瓦克化学中国有限公司广州代表处,广东广州510064 [2]Wacker ChemieGmbH,Germany

出　　处：《混凝土》2003年第10期62-65,共4页Concrete

摘　　要：　渗透型有机硅成功用于保护混凝土在国外已有数十年的历史。用于保护钢筋混凝土,它可防止水分及氯离子的渗透,从而对于防止混凝土的腐蚀与破坏起到关键的作用。这种浸渍剂一般都由硅烷或硅氧烷组成。通常情况下,由于这些低粘度的液体非常容易挥发,尤其在桥梁底面及立面施工时,有效成分大量流失。为了避免出现这种情况,德国瓦克化学有限公司成功开发了一种新型的硅烷乳膏状产品。这种材料施工简单,只需一步完成,具有很高的遮盖率,由于不流淌,活性组分不会损失。与混凝土表面接触时间长,保证了在高等级混凝土中的渗透深度,而且在其表面不会残留任何痕迹。Silicones have been used very successfully over decades to protect concrete,especially reinforced concrete,against moisture,since water plays a key role in damaging processes such as reinforcement corrosion.Impregnating agents are normally based on silanes and siloxanes.Usually significant amounts of these low viscous fluids are lost due to evaporation of volatile ingredients and running off of excess material,particularly when working over head.To avoid this,Wacker-Chemie GmbH has developed a very new type of water-based cream-WACKER BS Crème C.This material can be applied very easily by only one application step in very high coverage rates without loss of any active ingredients.It penetrates even high grade concrete effectively,prevents water and Chloride ingress and leaves no visible residues on the surface.

关 键 词：硅树脂 硅烷 硅氧烷 憎水性 膏体浸渍剂 表面保护 氯离子 

分 类 号：TU53[建筑科学—建筑技术科学]