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Polyurethane cement composite grouting material

A grouting material, polyurethane technology, applied in water conservancy projects, protection devices, sea area projects, etc., can solve the problems of being easily diluted or washed away by water, and the treatment of fine cracks cannot obtain satisfactory results, so as to achieve environmental protection and curing Fast, Visible Results

Active Publication Date: 2012-08-22
POWERCHINA HUADONG ENG COPORATION LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the cement slurry material is a granular material, the treatment of some fine cracks cannot get satisfactory results.
In addition, for the leaking part with a certain flow rate, the cement slurry poured in is easily diluted or washed away by water before it solidifies.
All of these make the application of cement grouting subject to certain restrictions.

Method used

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  • Polyurethane cement composite grouting material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The ratio of raw materials of polyurethane cement composite grouting material in this example is:

[0026] Component A:

[0027] Oil-soluble polyurethane grouting material (brand: HK-9105, viscosity: 150-300) 100 parts by weight

[0028] N-methylmorpholine + dibutyltin dilaurate 2 parts by weight

[0029] 1 weight part of 3-glycidyl etheroxypropyl trimethoxysilane

[0030] Component B:

[0031] No. 42.5 Ordinary Portland Cement 100 parts by weight

[0032] 30 parts by weight of water

[0033] 1 part by weight of sodium dodecylbenzenesulfonate.

[0034] Stir the raw materials of component A in proportion to make liquid A, put them into the slurry storage tank, then put the raw materials of component B in the cement slurry mixing equipment in proportion to mix them evenly to make liquid B, and put them into another slurry storage tank;

[0035] Put the two grout inlet pipes of the automatic variable grouting equipment (double liquid pump, which is commonly used equi...

Embodiment 2

[0040] The ratio of raw materials of polyurethane cement composite grouting material in this example is:

[0041] Component A:

[0042] Oil-soluble polyurethane grouting material (brand: HK-9105, viscosity: 150-300) 100 parts by weight

[0043] N-methylmorpholine + stannous octoate 4 parts by weight

[0044] 1 weight part of 3-glycidyl etheroxypropyl trimethoxysilane

[0045] Component B:

[0046] No. 42.5 Ordinary Portland Cement 100 parts by weight

[0047] 50 parts by weight of water

[0048] 1 part by weight of sodium dodecylbenzenesulfonate.

[0049] The preparation process of this example and the equipment involved are the same as in Example 1, and the mixing ratio is adjusted by A liquid: B liquid=1:2 to adjust the amount of slurry. The catalyst N-methylmorpholine + stannous octoate in component A is 2 parts by weight each. No superplasticizer is used in component B.

[0050] The technical index of the product that present embodiment obtains is as follows:

[0...

Embodiment 3

[0053] The ratio of raw materials of polyurethane cement composite grouting material in this example is:

[0054] Component A:

[0055] Oil-soluble polyurethane grouting material (brand: HK-9106, viscosity: 150-300) 100 parts by weight

[0056] N-methylmorpholine + dibutyltin dilaurate 2 parts by weight

[0057] 1 weight part of 3-glycidyl etheroxypropyl trimethoxysilane

[0058] Component B:

[0059] No. 42.5 Ordinary Portland Cement 100 parts by weight

[0060] 30 parts by weight of water

[0061] Water reducer (brand: FDN-C, β-naphthalenesulfonate formaldehyde condensate) 0.5 parts by weight

[0062] 1 part by weight of sodium dodecylbenzenesulfonate.

[0063] The preparation process of this example and the equipment involved are the same as in Example 1, and the mixing ratio is A liquid: B liquid=1: 1 to adjust the amount of slurry. The catalyst N-methylmorpholine + dibutyltin dilaurate in component A is 1 part by weight each.

[0064] The technical index of the prod...

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Abstract

The invention relates to a polyurethane cement composite grouting material. The invention aims to provide a polyurethane cement composite grouting material, and aims at compounding polyurethane grout and cement mortar into a composite grouting material, and getting the best out of the polyurethane grout and the cement mortar, which can lower cost and is also favorable for environment-friendly construction, and can achieve the purpose of quickly and effectively plugging water. The technical scheme for solving the problem is as follows: the polyurethane cement composite grouting material is characterized by consisting of a component A and a component B, and mixing ratios of raw materials are respectively as follows: the component A: 100 parts of an oil soluble polyurethane grouting materialby weight, 1-10 parts of a catalyst by weight and 0.5-2 parts of a silane coupling agent by weight; and the component B: 100-200 parts of cement by weight, 30-100 parts of water by weight, 0-10 partsof a water reducing agent by weight and 1-5 parts of a surfactant. The polyurethane cement composite grouting material is applicable to plugging of large flow water inrush.

Description

technical field [0001] The invention relates to a polyurethane cement composite grouting material. It is suitable for the sealing of large-flow gushing water, the filling and reinforcement of rock and concrete cracks, the reinforcement of dams, bridges, buildings and other building foundations, and soil stabilization. Background technique [0002] The grouting technology is divided into different grouting materials: cement grouting, cement mortar grouting, clay grouting, cement clay grouting, cement-water glass grouting and polymer solution chemical grouting. Cement remains by far the most widely used basic material in grouting work. When grouting, the cement slurry material should be considered first, and the chemical grouting material should be considered only when the cement slurry material cannot solve the engineering problem after research and demonstration. This is because: (1) The cement slurry material can meet the requirements of consolidation grouting, joint grou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B28/04E02B3/16E01D22/00E02D31/04
CPCC04B2111/70C04B28/04C04B40/065C04B2111/00706C04B40/0039
Inventor 包银鸿林中华杜志龙
Owner POWERCHINA HUADONG ENG COPORATION LTD
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