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Low-temperature repairing jacking pipe

A technology of pipe jacking and low temperature, which is used in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc. Effect

Inactive Publication Date: 2018-11-20
成都金玉雄辉建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a low-temperature repair pipe jacking, which solves the problem that the existing pipe jacking is not easy to repair in low-temperature repayment when cracks are caused by corrosion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A low-temperature repair pipe jacking, in which an outer anti-corrosion layer, a self-repairing layer, a concrete layer and an inner anti-corrosion layer are sequentially arranged from the outside to the inside.

[0019] The outer anti-corrosion layer includes epoxy resin, acrylic acid, N, N-dimethylethanolamine, polyurethane, and defoamer. Calculated in parts by weight, the outer anticorrosion layer includes 10 parts of epoxy resin, 4 parts of acrylic acid, 8 parts of N, N-dimethylethanolamine, 11 parts of polyurethane, and 2 parts of defoamer. The inner anti-corrosion layer is made of the same material as the outer anti-corrosion layer. The outer anti-corrosion layer is made of the following raw materials: eucommia rubber, cyclohexane, epoxidation reagent, and curing agent; the epoxidation reagent includes a mixture of formic acid and hydrogen peroxide; calculated in parts by mass, the eucommia rubber 10 Parts, 100 parts of cyclohexane, 70 parts of epoxidation reagen...

Embodiment 2

[0023] A low-temperature repair pipe jacking, in which an outer anti-corrosion layer, a self-repairing layer, a concrete layer and an inner anti-corrosion layer are sequentially arranged from the outside to the inside.

[0024] The outer anti-corrosion layer includes epoxy resin, acrylic acid, N, N-dimethylethanolamine, polyurethane, and defoamer. Calculated in parts by weight, the outer anticorrosion layer includes 6 parts of epoxy resin, 6 parts of acrylic acid, 4 parts of N, N-dimethylethanolamine, 15 parts of polyurethane and 1 part of defoamer. The inner anti-corrosion layer is made of the same material as the outer anti-corrosion layer. The outer anticorrosion layer also includes the following raw materials: eucommia rubber, cyclohexane, epoxidation reagent, and curing agent; the epoxidation reagent includes a mixture of formic acid and hydrogen peroxide; calculated in parts by mass, the eucommia rubber 4 parts, 100 parts of cyclohexane, 70 parts of epoxidation reagent,...

Embodiment 3

[0028] A low-temperature repair pipe jacking, in which an outer anti-corrosion layer, a self-repairing layer, a concrete layer and an inner anti-corrosion layer are sequentially arranged from the outside to the inside.

[0029] The outer anti-corrosion layer includes epoxy resin, acrylic acid, N, N-dimethylethanolamine, polyurethane, and defoamer. Calculated in parts by weight, the outer anticorrosion layer includes 10 parts of epoxy resin, 6 parts of acrylic acid, 4 parts of N, N-dimethylethanolamine, 15 parts of polyurethane and 1 part of defoamer. The inner anti-corrosion layer is made of the same material as the outer anti-corrosion layer. The outer anti-corrosion layer is made of the following raw materials: eucommia rubber, cyclohexane, epoxidation reagent, and curing agent; the epoxidation reagent includes a mixture of formic acid and hydrogen peroxide; calculated in parts by mass, the eucommia rubber 10 Parts, 100 parts of cyclohexane, 70 parts of epoxidation reagent,...

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PUM

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Abstract

The invention relates to building materials, in particular to a low-temperature repairing jacking pipe. The low-temperature repairing jacking pipe comprises an outer erosion resistant coating, a self-repairing layer, a concrete layer and an inner erosion resistant coating in sequence from outside to inside; the self-repairing layer comprises an epoxy resin matrix, repairing capsules and catalyst capsules; the repairing capsules and the catalyst capsules are dispersed in the epoxy resin matrix; the repairing capsules comprise monomer cyclopentadiene dimmer; the outer erosion resistant coating is prepared by the following raw materials of Eucommia ulmoides, cyclohexane, epoxidation reagent and a curing agent; and the epoxidation reagent comprises a mixture of formic acid and hydrogen peroxide. Multi-layer protection is achieved at a low-temperature environment when the jacking pipe cracks, self-repairing of various modes is achieved, and the repairing effect is good.

Description

technical field [0001] The invention relates to building materials, in particular to a low-temperature repair pipe jacking. Background technique [0002] The pipe jacking is buried deep underground, and its outer surface has been in direct contact with the soil for a long time. The soil contains a large amount of ionic components and water, which will cause corrosion to the pipe jacking for a long time, and it is easy to cause cracks in the pipe jacking, and these cracks are generally from the outside Inside, not easy to repair. And because the jacking pipe is installed underground, it is in a low temperature state for a long time, and the self-repair of the pipeline is more difficult in a low temperature environment. Contents of the invention [0003] The purpose of the present invention is to provide a low-temperature repair pipe jacking, which solves the problem that the existing pipe jacking is difficult to repair in low-temperature repayment when cracks are caused by...

Claims

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Application Information

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IPC IPC(8): F16L1/06C08L75/04C08L63/00C08L61/24C08L63/10
CPCC08L63/00C08L75/04C08L2203/18F16L1/06C08L61/24C08L63/10
Inventor 沈传雄
Owner 成都金玉雄辉建筑工程有限公司