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A kind of non-excavation spray plastic repair material and preparation method of in-service drainage pipeline

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., so as to reduce repair steps and cost, Low cost, effect of preventing hollowing

Active Publication Date: 2022-07-12
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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  • A kind of non-excavation spray plastic repair material and preparation method of in-service drainage pipeline
  • A kind of non-excavation spray plastic repair material and preparation method of in-service drainage pipeline
  • A kind of non-excavation spray plastic repair material and preparation method of in-service drainage pipeline

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example

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

[0026] The commercially available zeolite powder (Huaqing zeolite) was soaked in a mixed aqueous solution of 0.1 mol / L hydrochloric acid and 0.2 mol / L sodium sulfate at room temperature for 24 hours, then rinsed with water, calcined in air at 350 °C for 2 hours, and ground with The machine is ground to 200 mesh to obtain the modified zeolite powder; soaking is a conventional method, and the liquid can pass 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 the cementitious material, quartz sand, modified zeolite powder, latex powder, polyvinyl alcohol, fiber material, water-retaining agent, retarder, epoxy resin, and water (half of the total) to obtain component A, and wet the Mixing agent, curing agent, and water (the remaining amount) to obtain component B; mixing component A and component B to obtain a non-excavation spray-plastic repair material 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 trenchless spray plastic repair material for in-service drainage pipes, as shown in Table 1 below.

[0031]

[0032]

[0033]

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Abstract

The invention relates to a non-excavation plastic-spraying repair material for an in-service drainage pipeline and a preparation method. After mixing the retarder, it is mixed with the mixture of wetting agent, curing agent and water to obtain the trenchless spray-plastic repairing material for in-service drainage pipes. The spray-plastic repairing material of the invention can be used under the condition of normal drainage of the pipeline, ensures the repairing efficiency, improves the construction quality, and ensures the effectiveness and reliability of the trenchless repairing of the in-service defective drainage pipeline. It can effectively solve the problems of underground pipeline leakage, corrosion and damage, and will not bring about the situation of pipeline shutdown. Effectively reduce the engineering cost in the repair of drainage pipes. After the repair, the surface of the pipeline is smooth and smooth, the thickness is uniform, and the impermeability and corrosion resistance are effectively improved, which can meet the actual operation of the underground pipeline.

Description

technical field [0001] The invention belongs to the field of drainage pipeline repair, reinforcement and anti-corrosion, and relates to a non-excavation plastic spray repair material and a preparation method for an in-service drainage pipeline. Background technique [0002] Urban drainage pipelines are an important part of municipal facilities. Drainage pipelines are prone to rot, serious leakage, pipeline damage, deformation, and uneven settlement. Therefore, the repair work of drainage pipes is very necessary and imperative. At present, the spraying repair method of urban drainage pipes in China mainly includes UV curing CIPP repair technology. Under the condition that the position of the pipeline to be repaired is not changed, the resin-impregnated hose is first compressed by pulling compressed air and other methods or processes 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 in...

Claims

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Application Information

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Patent Type & Authority Patents(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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