Sheet for repairing and reinforcing concrete structure and repairing and reinforcing method thereof

A technology of concrete and structures, which is applied in the direction of building structure, chemical instruments and methods, and building maintenance, etc. It can solve problems such as difficult quality management, excessive specification design, and prolonged construction period, so as to reduce repair or enhancement work and improve quality. stable effect

Inactive Publication Date: 2002-08-07
SHO BOND CONSTRUCTION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Because these operations are carried out at high places, they are labor-intensive, and require curing or maintenance, which makes the construction period longer, so the construction cost is high, and it is difficult to carry out quality control according to the conditions of the construction site. In order to ensure the specified quality, there are often Excessive design of specifications and other issues

Method used

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  • Sheet for repairing and reinforcing concrete structure and repairing and reinforcing method thereof
  • Sheet for repairing and reinforcing concrete structure and repairing and reinforcing method thereof
  • Sheet for repairing and reinforcing concrete structure and repairing and reinforcing method thereof

Examples

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Embodiment Construction

[0046] Embodiments of the present invention will be described below with reference to the drawings.

[0047] figure 1 It is a cross-sectional view showing one embodiment of the sheet for repairing and reinforcing a concrete structure of the present invention.

[0048] The sheets were stacked in the following order.

[0049] First, on the polyvinyl fluoride film (about 20 to 50 μm in thickness) as the protective layer 1, a polyurethane-based two-component curing adhesive (3 to 50 g / m in terms of solid content) is applied as the lamination adhesive 2 2 left and right), and dried, and laminated with vinylon three-way mesh as the reinforcement layer 3 (a three-way laminated fabric cross-bonded by making multifilaments of about 800 to 4000 deniers into regular triangle meshes with a side of about 10 to 40 mm) A dry-laminated sheet is formed with a spun-bonded nonwoven fabric (about 12 to 70 g per square meter) made of polyester fiber as the attachment layer 4 to form a sheet 10 f...

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Abstract

A sheet for repairing and reinforcing a concrete structure is provided as a lamination having a protective layer and a sticking layer. A method of repairing and reinforcing a concrete structure by sticking the sheet to the surface of the structure is also provided. The invention is able to facilitate the operation of applying an adhesive and paint at a construction site and facilitate construction work.

Description

technical field [0001] The present invention relates to the repair and reinforcement of concrete structures, and more specifically, to preventing the corrosion of steel bars or the expansion of aggregates caused by cold joints, neutralization, salt damage, etc. of the concrete of concrete structures, or poor construction, etc. A sheet for repairing and reinforcing a concrete structure that causes peeling and falling of a concrete sheet, or prevents the above-mentioned factors from peeling or floating to repair a partially peeling and falling concrete structure, and a method for repairing and strengthening a concrete structure. Background technique [0002] Concrete structures were once thought to have durability that stood the test of time. Various causes, such as peeling and falling of concrete pieces or water leakage caused by cracks, have become social problems. [0003] In the past, when there was concern about concrete peeling and falling, the concrete surface was clea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02B32B5/14
CPCB32B27/12B32B27/32B32B27/34B32B27/36E04G23/02
Inventor 上田昭手塚道夫山本史郎上田康成
Owner SHO BOND CONSTRUCTION CO LTD
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