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In-service drainage pipeline trenchless plastic spraying repair material and preparation method thereof

A technology for drainage pipes and repair materials, which is applied in sewer pipe systems, waterway systems, water supply devices, etc. It can solve the problems of unsatisfactory anti-seepage effect, long construction period, and prone to hollowing, etc., to reduce long-term diversion pressure, Short construction period and the effect of preventing hollowing

Active Publication Date: 2021-03-16
堡森(上海)新材料科技有限公司
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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 non-excavation plastic spray repair material for in-service drainage pipes and its preparation method. There are problems such as hollowing, falling off, cracking, poor adhesion, and unsatisfactory corrosion resistance and impermeability effects

Method used

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  • In-service drainage pipeline trenchless plastic spraying repair material and preparation method thereof
  • In-service drainage pipeline trenchless plastic spraying repair material and preparation method thereof
  • In-service drainage pipeline trenchless plastic spraying repair material and preparation method thereof

Examples

Experimental program
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Effect test

Synthetic example

[0025] The water purification sludge from the waterworks in Suzhou High-tech Zone was dried at 100°C for 24 hours and then pulverized, and 800-1000 mesh was used as the water purification sludge in the following examples and comparative examples.

[0026] Soak the commercially available zeolite powder (Huaqing zeolite) in a mixed aqueous solution of 0.1mol / L hydrochloric acid and 0.2mol / L sodium sulfate at room temperature for 24 hours, then rinse with clean water, and then calcinate in air at 350°C for 2 hours, then grind Machine grinding to 200 meshes to obtain modified zeolite powder; soaking is a conventional method, and the liquid is submerged in the solid.

Embodiment

[0028] The fly ash, water purification sludge, and metakaolin are conventionally mixed and ball-milled for 30 minutes, and then conventionally mixed with cement to obtain a cementitious material.

[0029] Mix cementitious material, quartz sand, modified zeolite powder, latex powder, polyvinyl alcohol, fiber material, water retaining agent, retarder, epoxy resin, water (half of the total amount) to obtain component A, and wet Mixing agent, curing agent, and water (remaining amount) to obtain component B; mixing component A and component B to obtain non-excavation spray plastic repair materials for in-service drainage pipes; mixing is a conventional method.

[0030] The present invention provides the following examples 1-6 to specifically illustrate the components of the non-excavation plastic spraying repair material for drainage pipes in service, as shown in Table 1 below.

[0031]

[0032]

[0033]

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Abstract

The invention relates to an in-service drainage pipeline trenchless plastic spraying repair material and a preparation method thereof. The preparation method comprises the following steps of: mixing acementing material, quartz sand, modified zeolite powder, latex powder, polyvinyl alcohol, a fiber material, a water-retaining agent, epoxy resin and a retarder, and then mixing the mixture with a mixture of a wetting agent, a curing agent and water to obtain the in-service drainage pipeline trenchless plastic spraying repair material. The plastic spraying repair material can be used under the condition of normal drainage of a pipeline, the repair efficiency is ensured, the construction quality is improved, and the effectiveness and reliability of trenchless repair of an in-service defectivedrainage pipeline are ensured. The problems of leakage, corrosion and damage of underground pipelines can be efficiently solved, and the situation that the pipelines are shut down is avoided. The construction cost in drainage pipeline repair is effectively reduced. The repaired pipeline is smooth and flat in surface and uniform in thickness, the impermeability and the corrosion resistance are effectively improved, and actual operation of the underground pipeline can be met.

Description

technical field [0001] The invention relates to the field of drainage pipeline repair, reinforcement and anticorrosion, and relates to a non-excavation spray plastic repair material and a preparation method for in-service drainage pipelines. Background technique [0002] Urban drainage pipes are an important part of municipal facilities. Drainage pipes are rotten, leaking seriously, and pipe damage, deformation, uneven settlement, etc. occur from time to time. Therefore, the repair work of the drainage pipeline is very necessary and imperative. At present, the spraying repair methods of urban drainage pipes in China mainly include UV curing CIPP repair technology. Under the condition of not changing the position of the pipe to be repaired, firstly, the resin-soaked hose is pulled and compressed by compressed air to make the soft The tube is closely attached to the inner wall of the pipeline to be repaired, and then the ultraviolet lamp is put into the inflated hose by using...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00E03F3/06
CPCC04B28/00E03F3/06E03F2003/065C04B2201/50C04B18/08C04B18/0418C04B14/106C04B14/06C04B14/047C04B24/26C04B24/2623C04B2103/465C04B2103/22C04B24/281C04B18/26C04B16/0633C04B24/026Y02W30/91
Inventor 董家晏田旭孙即梁
Owner 堡森(上海)新材料科技有限公司
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