JPS6043532A - Anticorrosive work for marine structure - Google Patents

Abstract

PURPOSE:To perform corrosion-proofing work for marine structures simply and exactly by bonding a corrosion-proofing material coated with a water-resistant adhesive to a marine structure in water. CONSTITUTION:A corrosion-proofing material 3 of an expandible resin is molded into a shape corresponding to the shape of the anticorrosive face of a marine structure 2, e.g., revetment levee, etc., consisting of steel sheet piles, for example, to be constructed in front of a quaywall 1. A two-component type water-resistant epoxy resin adhesive 4 is coated in a thickness of 3-5mm. on the surface of the anticorrosive material 3 and bonded to the surface to be protected from corrosion of the structure 2. Excellent corrosion-proofing work can thus be obtained by following to even deformation of the structure 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for applying a water-resistant two-component poxy resin adhesive to the surface of a corrosion-resistant material made of foamed resin molded into a shape that corresponds to the shape of the surface to be corrosion-protected of a marine structure. This method relates to a corrosion-proofing method for marine structures, which is characterized by coating and adhering the corrosion-resistant material to marine structures underwater, and its purpose is to simply and reliably protect marine structures from corrosion underwater. The purpose of this invention is to provide a new and useful corrosion protection method.

In the present invention, as described above, the corrosion-resistant surface σ of the marine structure is
) A corrosion-resistant material made of foamed resin is molded into a shape that immediately corresponds to the shape, a water-resistant two-component hot-temperature epoxy resin adhesive is applied to the surface of the corrosion-resistant material, and the corrosion-resistant material is immersed in water as described above. The anti-corrosion material is made of foamed resin, so it has elasticity and adapts to the structure (even if the structure deforms in the future after being bonded). It adheres closely to the surface of decaying structures and retains its corrosion-preventing effect.

Since the adhesive used in the present invention is composed of a splint type (σ) two-component poxy resin adhesive, it can be applied directly even under water, and the above-mentioned corrosion-resistant material coated with the same adhesive can be applied directly even under water. By adhering to the corrosion-protected surface of the marine structure underwater, the corrosion-protection of the marine structure can be easily and reliably carried out.

The present invention will be described below with reference to the illustrated embodiments.

(1) is a quay wall, and (2) is a marine structure such as a seawall constructed of steel sheet piles, etc., constructed in front of the quay wall (1).

Then, a corrosion-resistant material (3) with a shape corresponding to the shape of the corrosion-protected surface of the marine structure is molded from urethane foam, and a water-resistant two-component epoxy resin adhesive (
4), for example, American Chemical Corporation (California, USA) Il
! AQUA TABOXY (trade name) relating to construction is adhered to a thickness of 3 to 5 mm, and the corrosion-resistant material (3) is adhered to the corrosion-protected surface of the marine structure (2) via the same adhesive (4) underwater. The two-component poxy resin adhesive (4) does not change in quality in water (adhesion can be made in water without any problem).

1. At this time, set the adhesive layer in water and use a hydraulic cylinder (
5α) and the pressurizing piece (5b) is attached to the tip of the corrosion-resistant moon (
3) may be shaped like the marine structure (2).

As described above, according to the present method, corrosion protection construction for marine structures can be easily performed. It follows the transformation of (2), and both (2)
Since there is a gel adhesive layer between 1 and 41, it can follow the roughness of the surface of the marine structure (2), and it always protects the surface of the marine structure (2) from corrosion (3). It is something that can be protected.

Although the present invention has been described above with reference to embodiments, it is of course not limited to such embodiments (and various changes in design may be made without departing from the spirit of the present invention). be.

[Brief explanation of drawings]

Figure 1 is a slope view of a marine structure to which the present invention is applied;
The figure is a cross-sectional plan view showing the implementation status of the method of the present invention, and FIG. 3 is a partially enlarged cross-sectional plan view of a marine structure having a permanent barrier layer. (21,,, marine structures, (3)...corrosion-resistant materials, (4)
···glue. Agents: 6 patent attorneys and non-Kaihon important literary figures Figure 1

Claims (1)

[Claims] A waterproof two-component type □ on the surface of a corrosion-resistant material made of foamed resin molded into a shape that corresponds to the shape of the surface to be protected against corrosion of marine structures.
・Apply an epoxy resin adhesive and add water to the corrosion-resistant material.
Corrosion prevention construction method for marine structures, characterized by adhesion to marine structures.