Injecting paste material for underground structure water plugging and preparation method thereof

A technology for grouting materials and underground structures, applied in the field of material science, can solve problems such as long setting time, slow strength rise, unfavorable immediate excavation construction, and high unit price of materials

Inactive Publication Date: 2013-05-15
QINGDAO BAOJILI ENG TECH CONSULTINGCO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary cement-sodium silicate double-fluid grout has adjustable gel time, high calculus rate of grouting body, and has certain strength. It is more suitable for grouting with high water pressure, fast water flow rate and large karst fissures. However, the on-site operation time is not easy to control, and pipe blockage is prone to occur
Ultra-fine cement will be one of the most widely used grouting materials at present. It has the characteri

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A grouting material used for water blocking of underground structures, raw materials are weighed strictly according to the following parts by weight:

[0018] 200 parts of Portland cement, 800 parts of superfine slag powder, 600 parts of water, 30 parts of sodium silicate, 5 parts of superplasticizer, 0.5 parts of cellulose ether, of which basic Portland cement, Superfine slag powder, water and sodium silicate are the basic components, and high-efficiency water reducer and cellulose ether are auxiliary components.

[0019] The preparation method comprises the following steps:

[0020] (1) Weigh Portland cement, ultrafine slag powder, water, sodium silicate, high-efficiency water reducer, and cellulose ether in proportion, among which Portland cement and sodium silicate are used as the excitation of ultrafine slag powder Agent, cellulose ether as water retention agent, thixotropic agent and thickener for grouting materials;

[0021] (2) Mix water, portland cement, supe...

Embodiment 2

[0023] A grouting material used for water blocking of underground structures, raw materials are weighed strictly according to the following parts by weight:

[0024] 300 parts of Portland cement, 700 parts of superfine slag powder, 600 parts of water, 30 parts of sodium silicate, 5 parts of superplasticizer, and 2 parts of cellulose ether.

[0025] The preparation method comprises the following steps:

[0026] (1) Weigh Portland cement, ultrafine slag powder, water, sodium silicate, high-efficiency water reducer, and cellulose ether in proportion, among which Portland cement and sodium silicate are used as the excitation of ultrafine slag powder Agent, cellulose ether as water retention agent, thixotropic agent and thickener for grouting materials;

[0027] (2) Mix water, portland cement, superfine slag powder, high-efficiency water reducer, cellulose ether and sodium silicate in a mixer and stir evenly to make a slurry for grouting.

Embodiment 3

[0029] A grouting material used for water blocking of underground structures, raw materials are weighed strictly according to the following parts by weight:

[0030] 600 parts of Portland cement, 600 parts of superfine slag powder, 550 parts of water, 10 parts of sodium silicate, 10 parts of superplasticizer, and 1 part of cellulose ether.

[0031] The preparation method comprises the following steps:

[0032] (1) Weigh Portland cement, ultrafine slag powder, water, sodium silicate, high-efficiency water reducer, and cellulose ether in proportion, among which Portland cement and sodium silicate are used as the excitation of ultrafine slag powder Agent, cellulose ether as water retention agent, thixotropic agent and thickener for grouting materials;

[0033] (2) Mix water, portland cement, superfine slag powder, high-efficiency water reducer, cellulose ether and sodium silicate in a mixer and stir evenly to make a slurry for grouting.

[0034] The present invention selects a ...

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PUM

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Abstract

The invention provides an injecting paste material for underground structure water plugging and a preparation method thereof and belongs to the field of material science. The injecting paste material comprises the following raw materials in parts by weight: 200-600 parts of Portland cement, 600-900 parts of ultra-fine slag powder, 550-650 parts of water, 10-30 parts of sodium silicate, 5-10 parts of high efficiency slushing agent and 0.5-2 parts of cellulose ether. The water glass (sodium silicate) and Portland cement serve as an activator of the ultra-fine slag powder, the water amount of the injecting paste material is reduced by using the high efficiency slushing agent, the cellulose ether serves as a water-retaining agent, a thixotropic agent and a thickening agent of the injecting paste material, the superfine cement is replaced by employing the Portland cement and the ultra-fine slag powder, various materials can be mixed and stirred on site, the Portland cement, the ultra-fine slag powder and the cellulose ether are uniformly mixed and packaged in advance and are transported to the site and are uniformly mixed and stirred with water, water glass and high efficiency slushing agent, various requirements of the injecting paste are met, and the amount of the ultra-fine cement is reduced.

Description

technical field [0001] The invention relates to a grouting material, in particular to a grouting material for water blocking of underground structures, and belongs to the field of material science. Background technique [0002] During the construction of tunnels, subways, mine roadways, etc., water leakage is often encountered in surrounding rock or concrete support, and lining. In order to reduce the flow of water during the construction process, grouting technology is often used to block water. After grouting, the surrounding rock cracks or concrete cracks are filled with grout, thereby reducing the water seepage rate and playing the role of grouting water blocking. For water plugging grouting, the grouting material is required to have a certain gel time controllability, otherwise it is easy to cause the loss of grout, and it is difficult to achieve the purpose of grouting water plugging. Grouting materials should meet the requirements of injectability, controllability, s...

Claims

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Application Information

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IPC IPC(8): C04B28/04
Inventor 郭保林邵新鹏白峰刚王晓乾郑子腾刘娅君田玉奎胡德功牛立军马伟强孙建郭忠良
Owner QINGDAO BAOJILI ENG TECH CONSULTINGCO
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