36results about How to "Retain breathability" patented technology

The invention relates to a preparation method for a protective structure of a concrete bridge anti-collision wall, which is applicable to the protective structure of the concrete bridge anti-collision wall and is also applicable to the protective structure of other concrete structures. The protective structure of the concrete bridge anti-collision wall consists of a permeable confining layer, an isolating layer and a surface coating, wherein the permeable confining layer adopts silane solution capable of permeating into 5-mm depth of the concrete structure surface layer, so the water absorbability of the concrete structure and the permeability of chloride are obviously reduced, and the original air permeability of the concrete structure is remained; and the isolating layer and the surfacecoating can prevent a corrosive medium from eroding and permeating the surface of the concrete structure. The construction process of the protective structure is simple, practical and convenient to use widely. An inorganic material and an organic material are combined together organically through chemical bonds under the action of silane and the isolating layer and the surface layer are provided,so that the effective protective structure is formed, the durability of the concrete is improved, the service life is prolonged, and considerable economic and social benefits are achieved.