Polypropylene crosslinking copolymer fiber concrete leaking stoppage paste

A technology of cross-linked copolymer and fiber concrete is applied in the field of plugging slurry, which can solve the problems of high cost and high risk, and achieve the effects of low cost, reducing loss and improving the effect of plugging.

Inactive Publication Date: 2015-04-22
CHONGQING THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the effect of chemical plugging is good, it has higher risk and higher cost than bridging plugging method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The polypropylene cross-linked copolymer fiber concrete plugging slurry includes: low-density expansion plugging slurry in the early stage and high-density sealing plugging slurry in the later stage;

[0027] Among them, the low-density expansion plugging slurry in the early stage is composed of the following components in parts by weight: 3 parts of polytetrafluoroethylene resin as a composite filler, 5 parts of formazan as a composite reinforcing agent, 2.5 parts of sodium polyacrylate cross-linked copolymer particles, 5 parts of flax fiber with a length of 3-5cm, 1 part of sawdust with a particle size of 8-10mm, and 83.5 parts of water; weigh and mix the components according to their parts by weight, and send them into the Mixing bucket, then add UNF-5 type high-efficiency water reducer, UNF-5 type high-efficiency water reducer accounts for 7%-9% of the total weight of the above components, so that the absolute viscosity of the slurry is 120mPa·s, and the low-density ...

Embodiment 2

[0049] The polypropylene cross-linked copolymer fiber concrete plugging slurry includes: low-density expansion plugging slurry in the early stage and high-density sealing plugging slurry in the later stage;

[0050] Among them, the low-density expansion plugging slurry in the early stage is composed of the following components in parts by weight: 4 parts of composite filler polytetrafluoroethylene resin, 4 parts of composite reinforcing agent formazan, 3 parts of sodium polyacrylate cross-linked copolymer particles, 6 parts of flax fiber with a length of 3-5cm, 1 part of sawdust with a particle size of 8-10mm, and 82 parts of water; weigh and mix each component according to its parts by weight, and send it into the Mixing bucket, then add UNF-5 high-efficiency water reducer, UNF-5 high-efficiency water reducer accounts for 7%-9% of the total weight of the above components, so that the absolute viscosity of the slurry is 118mPa s, and the early low-density expansion type pluggi...

Embodiment 3

[0054] The polypropylene cross-linked copolymer fiber concrete plugging slurry includes: low-density expansion plugging slurry in the early stage and high-density sealing plugging slurry in the later stage;

[0055] Among them, the low-density expansion plugging slurry in the early stage is composed of the following components in parts by weight: 5 parts of composite filler polytetrafluoroethylene resin, 4 parts of composite reinforcing agent formazan, 2.5 parts of sodium polyacrylate cross-linked copolymer particles, 5 parts of flax fiber with a length of 3-5cm, 0.5 part of sawdust with a particle size of 8-10mm, and 83 parts of water; weigh and mix each component according to its parts by weight, and send it into the Mixing bucket, then add UNF-5 type high-efficiency water reducer, UNF-5 type high-efficiency water reducer accounts for 7%-9% of the total weight of the above components, so that the absolute viscosity of the slurry is 115mPa·s, and the early low-density expansio...

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Abstract

The invention discloses polypropylene crosslinking copolymer fiber concrete leaking stoppage paste which comprises earlier-stage leaking stoppage paste and later-stage leaking stoppage paste. The earlier-stage leaking stoppage paste is composed of the following components of, by weight, 3 to 5 parts of a composite filling agent, 4 to 5 parts of a composite reinforcement agent, 2.5 to 3 parts of sodium polyacrylate crosslinking copolymer particles, 5 to 6 parts of flax fibers, 0.5 to 1 part of saw powder and 80 to 85 parts of water. The later-stage leaking stoppage paste is composed of the following components of, by weight, 20 to 30 parts of silicate cement, 5 to 10 parts of sodium polyacrylate crosslinking copolymer particles, 5 to 15 parts of flax fibers, 15 to 20 parts of medium sand and 5 to 10 parts of water. According to the leaking stoppage paste, a bridge connection leaking stoppage method and a chemical leaking stoppage method are combined, leaking stoppage risks are reduced, the leaking stoppage effect is improved, and meanwhile cost is low.

Description

technical field [0001] The invention belongs to the field of plugging slurry for grouting with concealed large cracks inside reservoir dam foundations or other rock and soil bodies, and in particular relates to a polypropylene cross-linked copolymer fiber concrete plugging slurry. Background technique [0002] Water conservancy projects play a very important role in my country's economic development. They can not only prevent floods and reduce disasters, but also provide water sources for agricultural production and industrial water. Therefore, the quality of water conservancy projects is related to people's lives and property, and is a matter of widespread concern to all sectors of society. Frequent problems in water conservancy projects include leakage, aging engineering equipment, imperfect management of construction procedures, and imperfect quality information feedback system. Among them, the seepage problem is the most serious and difficult to deal with, especially the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
Inventor 毛海涛王正成侍克斌吴恒滨
Owner CHONGQING THREE GORGES UNIV
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