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Paste quick-setting grouting material and preparation method thereof

A grouting material and rapid-setting technology, applied in the field of material science, can solve the problems such as plugging of structures that cannot contain water, loss of original performance, and restriction of engineering applications.

Active Publication Date: 2011-04-06
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the material is injected into the water-bearing structure, it is easily washed away and diluted by water, thus changing the established grouting material slurry mix ratio, losing its original performance, and unable to effectively seal the water-bearing structure
At the same time, the relatively expensive price of quick-setting grouting materials is also the bottleneck restricting its wide engineering application.

Method used

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  • Paste quick-setting grouting material and preparation method thereof
  • Paste quick-setting grouting material and preparation method thereof
  • Paste quick-setting grouting material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A paste-like quick-setting grouting material, which is composed by weight ratio: 1 part of ordinary 325 Portland cement, 1 part of water, 0.2 part of chemical modifier (90% sodium silicate, 5% water reducer, high hydroxyl Polymer 5%).

[0027] The preparation method comprises the following steps:

[0028] 1) Strictly weigh ordinary 325 Portland cement, water, and chemical modifiers in proportion;

[0029] 2) Mix water and ordinary 325 portland cement in a mixer to make a slurry;

[0030] 3) Sodium silicate, water reducer, and polyethylene glycol are mixed uniformly in a mixer to form a chemical modifier;

[0031] 4) Mix ordinary 325 cement slurry with chemical modifier and stir for 10-20 seconds;

[0032] 5) Put the mixed material into the forming mold;

[0033] 6) Put the formed material into a standard concrete curing box for curing. .

Embodiment 2

[0035] A paste-like quick-setting grouting material, which is composed of 1 part of ordinary 325 Portland cement, 1 part of water, and 0.5 part of a chemical modifier.

[0036] The preparation method comprises the following steps:

[0037] 1) Strictly weigh ordinary 325 Portland cement, water, and chemical modifiers in proportion;

[0038] 2) Mix water and ordinary 325 portland cement in a mixer to make a slurry;

[0039] 3) Sodium silicate, water reducer, and polyethylene glycol are mixed uniformly in a mixer to form a chemical modifier;

[0040] 4) Mix ordinary 325 cement slurry with chemical modifier and stir for 10-20 seconds;

[0041] 5) Put the mixed material into the forming mold;

[0042] 6) Put the formed material into a standard concrete curing box for curing.

Embodiment 3

[0044] A paste-like quick-setting grouting material, which consists of 1 part of ordinary 325 Portland cement, 1 part of water, and 1.2 parts of a chemical modifier.

[0045] The preparation method comprises the following steps:

[0046] 1) Strictly weigh ordinary 325 Portland cement, water, and chemical modifiers in proportion;

[0047] 2) Mix water and ordinary 325 portland cement in a mixer to make a slurry;

[0048] 3) Mix sodium silicate, water reducing agent and polyethylene glycol uniformly in a mixer to form a chemical modifier;

[0049] 4) Mix ordinary 325 cement slurry with chemical modifier and stir for 10-20 seconds;

[0050] 5) Put the mixed material into the forming mold;

[0051] 6) Put the formed material into a standard concrete curing box for curing.

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PUM

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Abstract

The invention relates to a paste quick-setting grouting material and a preparation method thereof. The material comprises the following components in part by weight: 1 part of portland cement, 1 part of water and 0.1 to 1.5 parts of chemical modifier, wherein the chemical modifier is a mixture of a sodium salt quick-setting agent, a water reducing agent and a hydroxy polymer. The paste quick-setting grouting material of the invention overcomes the defects that the conventional quick-setting grouting material is difficult to control and cannot resist dispersing in the water, and has the characteristics of difficultly blocking grouting pipelines or drill holes, along with high strength.

Description

technical field [0001] The invention relates to a grouting material, in particular to a paste-like quick-setting grouting material used for the treatment of high-pressure and large-flow gushing projects, and belongs to the field of material science and technology. Background technique [0002] The current quick-setting grouting materials pursue the quick-setting effect and strength in a multi-sided manner, and insufficient consideration is given to the pumpability and dispersion resistance of the material. When the material is injected into the water-bearing structure, it is easily washed away and diluted by water, thus changing the established grouting material slurry mix ratio, losing its original performance, and effectively blocking the water-bearing structure. At the same time, the relatively expensive price of quick-setting grouting materials is also the bottleneck restricting its wide engineering application. Contents of the invention [0003] The purpose of the pr...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B12/04C04B24/2641C04B24/32C04B40/0032C04B2103/302
Inventor 刘人太张庆松李术才李海燕原小帅张霄韩伟伟张伟杰王凤刚
Owner SHANDONG UNIV
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