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Composite type self-adhesion water stop band, manufacturing method and construction method

A waterstop, composite technology, applied in water conservancy projects, belts, marine engineering and other directions, can solve problems such as deformation and tearing of waterstops, leakage and water seepage at the connection between waterstops and concrete, and prevent buildings Leakage, long-lasting adhesion and reasonable structure

Inactive Publication Date: 2010-04-07
TIANJIN WATER RESOURCES RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional embedded waterstop, because the bond between the base material of the waterstop and the concrete is not strong enough, will cause water seepage under long-term water pressure
When the concrete is shaken, the waterstop is easy to be dislocated and deformed, and the concrete around the waterstop is not easy to compact. Because the bonding force between the waterstop and the concrete is very small, it is easy to cause leakage at the joint between the waterstop and the concrete.
Due to changes in geological conditions, ground subsidence, etc., concrete creep will cause deformation and tearing of the waterstop, thus failing to achieve the waterstop effect

Method used

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  • Composite type self-adhesion water stop band, manufacturing method and construction method
  • Composite type self-adhesion water stop band, manufacturing method and construction method
  • Composite type self-adhesion water stop band, manufacturing method and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The main body of the waterstop base material (1) is a profile as a whole, and the main body of the waterstop base material (1) is composed of a telescopic hole (2), a telescopic belt (3), a waterstop base plate (8), a concave bonding groove (7 ) and water-stop ribs (4), the middle part of the main body (1) of the water-stop strip is provided with a telescopic hole (2), the telescopic hole (2) is hollow as a whole, and the cross-sectional shape of the telescopic hole (2) is circular or elliptical shape or rectangle, the middle part of the telescopic hole (2) is provided with a telescopic band (3), the telescopic band (3) runs through the telescopic hole (2) through the middle part of the telescopic hole (2), and the telescopic band (3) keeps the telescopic hole (2) According to the cross-sectional shape, the creep of concrete (9) or geological change causes the dislocation to tear the telescopic belt (3), and the deformation of the telescopic hole (2) still maintains the ...

Embodiment 2

[0044] The main body of the waterstop substrate (1) is made of water-soluble polyurethane prepolymer or sodium acrylate polymer water-absorbent resin or rubber or plastic or neoprene material, and is made into the main body of the waterstop substrate through an extrusion molding machine (1) Profile, during the extrusion molding process, a telescopic hole (2) is made in the middle of the main body (1) of the waterstop substrate, the telescopic hole (2) is hollow, and the cross-sectional shape of the telescopic hole (2) is circular or oval or Rectangular, the middle part in telescopic hole (2) makes telescopic band (3), and telescopic band (3) runs through telescopic hole (2) by the middle part of telescopic hole (2).

[0045] The two ends of the main body of the waterstop substrate (1) are made along the two sides of the telescopic hole (2) to form a correspondingly flat waterstop substrate (8), and the two ends of the main body of the waterstop substrate (1) are The water belt...

Embodiment 3

[0050] First, take out the rolled waterstop base material body (1), remove the outer packaging, and fix the waterstop base material body (1) along the deformation joint of the concrete building to the deformation joint of the concrete building to be poured according to the design requirements Above, the center line of the telescopic hole (2) of the base material body (1) of the waterstop is aligned with the centerline of the deformation joint of the concrete building, and the telescopic belt (3) in the telescopic hole (2) maintains the cross-section of the telescopic hole (2) Shape, the both sides of waterstop base material main body (1) are fixed with mould, when waterstop base material main body (1) is positioned, waterstop base material main body (1) can not turn over, twist phenomenon.

[0051] Before pouring concrete (9), remove the isolation layer (6) on the bonding layer (5) in the concave bonding groove (7), check the fixation of the main body (1) of the waterstop, and ...

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Abstract

The invention relates to a composite type self-adhesion water stop band, a manufacturing method and a construction method. The main body of the water stop band base material is a section bar on the whole and is composed of an expanding hole, an expanding band, water stop band substrates, a concave binding slot and a water stop rib. The middle part of the main body of the water stop band base material is provided with the expanding hole, the middle part in the expanding hole is provided with the expanding band, the two end parts of the main body of the water stop base material are provided with water stop band substrates, the concave binding slots are arranged on the water stop substrates, a binding layer is arranged in the concave binding slots and adopts non-vulcanization butyl rubber, ionic reaction is generated between the binding layer and calcium oxide in concrete, the binding layer and the calcium oxide are penetratively bonded together to form an impermeable layer to stop leakage. The invention has scientific design and reasonable structure, and solves the problem that water seepage easily occurs to the common water stop band as the concrete binding is unstable; when the concrete architecture generates elastic deformation under various loads, the expanding hole and the expanding band play the function of reinforcing and sealing, therefore, the invention can be widely applied to cast-in-place concrete construction operation of buildings and structures such as bridge opening, tunnels, hydropower stations and the like.

Description

technical field [0001] The invention relates to a water-stop material for a protective component, in particular to a composite self-adhesive water-stop belt, a manufacturing method and a construction method. Background technique [0002] In the construction of cast-in-place concrete such as bridges and culverts, tunnels, and hydropower stations, deformation joints, settlement joints or construction joints are usually set up so that the concrete body will not be damaged during thermal expansion and contraction. In order to avoid the penetration of water through deformation joints, settlement joints or construction joints, it is necessary to use waterstops between these deformation joints, settlement joints or construction joints to achieve the purpose of preventing water seepage and preventing water leakage. The traditional embedded waterstop, because the bond between the base material of the waterstop and the concrete is not strong enough, will cause water seepage under the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/06E02B3/16E21D11/38E04B1/68B29D29/00
Inventor 刘学功孙永军杨慧张振
Owner TIANJIN WATER RESOURCES RES INST
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