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Foundation waterproof construction method and waterproof structure

A construction method and foundation technology, which can be used in infrastructure engineering, anti-fouling/underwater coatings, protection devices, etc., can solve problems such as peeling, offset, and weaken the adhesion between the waterproof layer and the asphalt mixture, and achieve good durability Effect

Inactive Publication Date: 2003-06-04
NIPPON PAINT CO LTD
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Problems solved by technology

In this regard, if a material used to form a waterproof layer that is not easily softened by heating is used, the adhesion between the waterproof layer and the asphalt mixture is likely to be weakened, and the load after construction will also cause a gap between the waterproof layer and the pavement formed by the asphalt mixture. Delamination, offset, etc. between layers

Method used

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  • Foundation waterproof construction method and waterproof structure
  • Foundation waterproof construction method and waterproof structure
  • Foundation waterproof construction method and waterproof structure

Examples

Experimental program
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Embodiment

[0045] Examples of the present invention will be specifically described below. First, apply a water-based epoxy resin primer (Tough guard R-W primer, manufactured by Nippon Paint Co., Ltd.) on the foundation concrete, and after the primer dries, apply a two-component curing polyurea resin (two-component polyurea resin) to form a waterproof layer. Component curable resin A) (Tough guard R-G or Tough guard R-M, both manufactured by Nippon Paint Co., Ltd.). Then, apply a two-component curing polyurea resin (two-component curing resin B) (Tough guard R-P, manufactured by Nippon Paint Co., Ltd.) to form an adhesive waterproof layer, and lay it on top to form a pavement before curing. layer of asphalt mixture.

[0046] In the present embodiment, the coating amount of the water-based epoxy resin primer used is 0.04 kilograms per 1 square meter, and the coating amount of the two-component curing type polyurea resin (two-component curing type resin A) used is 1.1 kg (1 mm in thicknes...

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Abstract

The invention provides a method and a structure for waterproofing a floor slab excellent in adhesion between the floor slab and an asphalt mixture, and waterproof effect, and durability. After a waterproof layer (3) formed of two-part curing resin A has been formed on the floor slab (1), an adhesive layer (4) formed of two- part curing resin B having a longer curing time than the two-part curing resin A is formed on the waterproof layer (3) and then, the adhesive layer (4) is paved with the asphalt mixture (5).

Description

technical field [0001] The invention relates to a foundation waterproof structure of bridges and the like and a foundation waterproof construction method. Background technique [0002] In general, with regard to reinforced concrete foundations or steel foundations of road bridges, it is well known that rainwater, snow melting agents, etc. that flow in from damaged parts of the pavement, etc., penetrate into the foundation from small cracks, causing deterioration of the concrete, and steel components such as steel bars inside the foundation. Corrosion, etc., will significantly reduce the durability of the foundation. [0003] Therefore, in order to prevent such a situation, the foundation must be waterproofed. The existing representative waterproof construction methods for reinforced concrete foundations are patch-type waterproof construction methods, coating-type waterproof construction methods, and the like. The patch-type waterproof construction method is a construction m...

Claims

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Application Information

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IPC IPC(8): E01C11/24C09D5/16C09D175/00E01D19/08E01D19/12E01D101/40E02D31/02
Inventor 金森博西村田人出云孝治
Owner NIPPON PAINT CO LTD
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