Construction method for as-cast finish concrete transparent protective layer

A technology of transparent protective layer and fair-faced concrete, applied in the direction of covering/lining, building, building structure, etc., to achieve the effect of preventing alkali return and increasing adhesion

Active Publication Date: 2012-02-15
江苏诚意工程技术研究院有限公司
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Problems solved by technology

60% of the final decorative effect of fair-faced concrete walls depends on the quality of concrete pouring, and 40% depends on the later transparent protective spraying construction. Therefore, fair-faced concrete is a great challenge to the level of building construction.

Method used

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  • Construction method for as-cast finish concrete transparent protective layer

Examples

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Embodiment

[0011] The method includes concrete surface treatment and concrete transparent protective layer brushing, specifically carried out as follows:

[0012] (1) Concrete surface treatment: For a small number of concrete with large defects or large color differences, clean it with a special cleaning agent, then rinse it with a high-pressure water gun, and use an angle grinder to grind the exposed metal to 0.4-0.5 below the concrete surface mm, paint with anti-rust paint, repair it with flexible putty, and then adjust the color to be basically the same as the large wall with an adjustment material, then polish and putty repair, and properly repair the place where the honeycomb is relatively dense to make it the color Basically consistent with the color of the concrete surface;

[0013] (2) Honeycomb holes with a diameter greater than 4mm and cracks with a width greater than 0.3mm on the surface of concrete beams, slabs, and columns need to be filled and repaired, then chiseled and le...

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PUM

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Abstract

The invention relates to a construction method for building concrete, in particular to a construction method for an as-cast finish concrete transparent protective layer, and belongs to the technical field of building construction. The method comprises the following steps of: performing surface treatment on concrete and coating a concrete transparent protective layer. By standard construction measures, the concrete transparent protective layer is coated, namely a base layer is cured for more than 28 days, so that the alkalinity is reduced, the pH value is less than 10, the water content is less than 6 percent, a regulation material is repaired in a felt coating mode uniformly, the transparent protective layer is made of pure organosilicon, drinking water is used for blending, the roller coating interval is 2 hours, a permeable seal primer is coated to prevent the re-alkali of the base material and improve the adhesion of a coated film, and the transparent protective layer has elasticity and extensibility to meet the requirement of concrete shrinkage or expansion.

Description

technical field [0001] The invention relates to a construction method for building concrete, in particular to a construction method for a transparent protective layer of fair-faced concrete, which belongs to the technical field of construction. Background technique [0002] In our country, fair-faced concrete is constantly developing along with the development of concrete structure. In the 1970s, in the construction of internal pouring and external hanging systems, fair-faced concrete was mainly used in the reverse construction of precast concrete exterior wall panels, and progress has been made. Afterwards, because people all cast the sight of exterior decoration in facing brick and glass curtain wall, the application and practice of fair-faced concrete are almost in stagnant state. Until 1997, Beijing set up the "Structure Great Wall Cup Project" award to promote fair-faced concrete construction and make fair-faced concrete regain development. In recent years, fair-faced...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F13/02
Inventor 宋功业
Owner 江苏诚意工程技术研究院有限公司
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