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Soft rock slope soil protection curing agent

A curing agent and slope technology, applied in the field of soil protection curing agent for soft rock slopes, can solve the problem of the concept of ecological and environmental protection being far apart, improve the anti-scour ability and anti-wind erosion ability, good workability, change The effect of hydrophilic properties

Active Publication Date: 2021-08-13
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although sprayed cement concrete mortar has good durability and is fully compatible with slopes, it is far from the concept of ecological and environmental protection in expressway construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The soft rock slope soil protection curing agent of this embodiment, the curing agent raw materials include the following components by weight: 30 parts of composite resin, 10 parts of neoprene rubber, 5 parts of corn stalks, 5 parts of polyacrylic acid, 4 parts of cement , 4 parts of polyethanolamine, 4 parts of polyethylene oxide, 2 parts of polyvinyl acetate, 2 parts of polyaspartic acid, 1 part of ammonium sulfate, 1 part of curing aid;

[0014] The composite resin is a mixture of epoxy resin and urea-formaldehyde resin, with a weight ratio of epoxy resin: urea-formaldehyde resin=3:1;

[0015] The corn stalks are processed in the following way: a. itaconic acid is dissolved in deionized water to prepare a 20% itaconic acid aqueous solution, and then slowly dripped with a 20% NaOH solution to obtain a neutralization degree of 55%. % of itaconic acid solution, add acrylamide, N-vinylpyrrolidone and N, N-methylenebisacrylamide, and stir until completely dissolved;

[...

Embodiment 2

[0020] The soft rock slope soil protection curing agent of this embodiment, the curing agent raw materials include the following components by weight: 40 parts of composite resin, 20 parts of neoprene rubber, 10 parts of corn stalks, 10 parts of polyacrylic acid, 8 parts of cement , 8 parts of polyethanolamine, 8 parts of polyethylene oxide, 6 parts of polyvinyl acetate, 6 parts of polyaspartic acid, 3 parts of ammonium sulfate, 3 parts of curing aid;

[0021] The composite resin is a mixture of epoxy resin and urea-formaldehyde resin, with a weight ratio of epoxy resin: urea-formaldehyde resin=3:1;

[0022] The corn stalks are processed in the following manner: a. dissolving itaconic acid in deionized water to prepare a 20% itaconic acid aqueous solution, and then slowly adding a 20% NaOH solution to obtain a neutralization degree of 75%; % of itaconic acid solution, add acrylamide, N-vinylpyrrolidone and N, N-methylenebisacrylamide, and stir until completely dissolved;

[0...

Embodiment 3

[0027] The soft rock slope soil protection curing agent of this embodiment, the curing agent raw materials include the following components by weight: 30 parts of composite resin, 20 parts of neoprene rubber, 5 parts of corn stalks, 10 parts of polyacrylic acid, 4 parts of cement , 8 parts of polyethanolamine, 4 parts of polyethylene oxide, 6 parts of polyvinyl acetate, 2 parts of polyaspartic acid, 3 parts of ammonium sulfate, 1 part of curing aid;

[0028] The composite resin is a mixture of epoxy resin and urea-formaldehyde resin, with a weight ratio of epoxy resin: urea-formaldehyde resin=3:1;

[0029] The corn stalks are processed in the following way: a. itaconic acid is dissolved in deionized water to prepare a 20% itaconic acid aqueous solution, and then slowly dripped with a 20% NaOH solution to obtain a neutralization degree of 55%. % of itaconic acid solution, add acrylamide, N-vinylpyrrolidone and N, N-methylenebisacrylamide, and stir until completely dissolved;

...

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PUM

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Abstract

The invention discloses a soil protection and curing agent for soft rock slopes. The raw materials of the curing agent include the following components in parts by weight: composite resin, neoprene rubber, corn straw, polyacrylic acid, cement, polyethanolamine, polyethylene oxide, Polyvinyl acetate, polyaspartic acid, ammonium sulfate, curing aids; good cohesiveness, curing, fluidity and workability, after contact with the soil, the polymer chains diffuse, penetrate and entangle in the soil particles A net-like film structure is formed on the surface and in the pores. At the same time, a large number of functional groups contained in the polymer chain are combined with the soil particles through chemical bonds, which enhances the water stability of the soil particles, and at the same time changes the hydrophilic properties of the soil particles to form an effective anti-water barrier. Ability to improve the erosion resistance and wind erosion resistance of the soil. The curing agent can interact with the soil, which is beneficial to the growth and development of vegetation. On the basis of curing soft rock slopes, guest soil spraying can be carried out for ecological protection. .

Description

technical field [0001] The invention relates to the field of slope protection. It particularly relates to a soft rock slope soil protection curing agent. Background technique [0002] Soft rock is a complex rock mechanical medium with significant plastic deformation in a specific environment. The basic mechanics theory and research methods of soft rock have been studied in depth. Over the years, the basic concepts of soft rock and soft rock engineering slope design And other theoretical issues, there has been no conclusion at home and abroad, which has brought a lot of inconvenience to soft rock engineering slopes. Soft rock engineering refers to rock mass engineering related to large plastic deformation engineering rock mass, such as soft rock tunnel engineering, soft rock slope engineering and so on. Regarding the definition of soft rock, there are many different interpretations, including descriptive definitions: (1) Soft rock formation refers to loose and weak rock for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C09K105/00
CPCC09K17/40C09K2105/00
Inventor 王羽张立舟张昶
Owner CHONGQING JIAOTONG UNIVERSITY
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