混凝土结构表面硅烷浸渍处理技术研究进展

混凝土结构硅烷浸渍表面处理技术已经被纳入规范,并广泛应用于以海洋环境为代表的严重腐蚀环境下的混凝土结构.介绍了硅烷浸渍表面处理技术的历史沿革以及硅烷的分类,探讨了硅烷浸渍技术的作用机理,总结了国内外硅烷浸渍处理用硅烷材料的技术要求,从基本功能、基于作用环境功能以及辅助功能3方面提出了硅烷浸渍处理的技术要求,阐述了硅烷浸溃处理技术对混凝土吸水性能、抗氯离子渗透性能、抗冻性能、抗磨性能与抗酸雨性能的影响,提出了混凝土结构表面硅烷浸渍处理技术存在的问题,指出了硅烷浸渍处理技术适用的作用环境.

Progress of Silane Impregnating Surface Treatment Technology of Concrete Structure

The silane impregnating surface treatment technology of concrete structure has been incorporated into the standard and is widely used in the concrete structures in severely corrosive environment represented by marine environment.The history evolution and classification of silane impregnating surface treatment technology are introduced and the action mechanism of silane impregnating technology is discussed.The technical requirements of silane hydrophobic impregant used for surface treatment at home and abroad are summarized.Technical requirements of the silane impregnating surface treatment technology has been put forward based on fundamental function,considering environmental function and assistant function.The effects of silane impregnating surface treatment technology on concrete performance including water absorption,chloride ion permeation,frost resistant,wear-resistant and acid rain resistant are described.The existing problems and fitting environment of the silane impregnating surface treatment technology of concrete structure are also put forward.