Grouting material

A grouting material and slurry technology, applied in the field of grouting materials, can solve the problems of high price, environmental pollution, loss of original performance, etc., and achieve the effect of improving viscosity and strength

Active Publication Date: 2014-04-30
DONGHAI CONSTR GRP
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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.
[0004] Most of the existing technologies rely on adding additives to ease the dispersion of water. Minerals such as water reducers and fly ash can be added, and some can also be added with polystyrene, etc., but this will bring environmental pollution to some extent, and the effect not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A grouting material, consisting of Portland cement, hydroxyethyl methylcellulose, natural guar gum, silica fume, dodecyl dimethyl hydroxypropyl sulfobetaine, and water in parts by weight of 1: 0.005-0.008: 0.005-0.01: 0.1-0.2: 0.002-0.005: 1 mixed.

[0019] Weigh Portland cement, hydroxyethyl methylcellulose, natural guar gum, silica fume, betaine, and water in proportion; mix Portland cement, silica fume, and two-thirds of water in a mixer evenly , to make a slurry; dissolve the remaining water to dissolve hydroxyethyl methylcellulose, natural guar gum, and betaine and stir to form a solution; mix the slurry with the solution and stir evenly.

[0020] Put the mixed material into the forming mold, put the formed material into a standard concrete curing box for curing, and test the strength. The results are shown in Table 1.

Embodiment 2

[0022] A grouting material consisting of Portland cement, hydroxyethyl methylcellulose, natural guar gum, silica fume, dodecyl ethoxy sulfobetaine, and water in a weight ratio of 1:0.005:0.01 :0.1:0.003:1 mixed.

[0023] Weigh Portland cement, hydroxyethyl methylcellulose, natural guar gum, silica fume, betaine, and water in proportion; mix Portland cement, silica fume, and two-thirds of water in a mixer evenly , to make a slurry; dissolve the remaining water to dissolve hydroxyethyl methylcellulose, natural guar gum, and betaine and stir to form a solution; mix the slurry with the solution and stir evenly.

[0024] Put the mixed material into the forming mold, put the formed material into a standard concrete curing box for curing, and test the strength. The results are shown in Table 1.

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PUM

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Abstract

The invention relates to a grouting material. The grouting material is prepared by mixing silicate cement, hydroxyl ethyl methyl cellulose, natural guar gum, silica fume, glycine betaine and water in a weight ratio of (1-1.2):(0.001-0.008):(0.001-0.01):(0.1-0.2):(0.001-0.005):1. According to the grouting material, the slurry viscosity and condensing performance can be improved due to the interaction of silica fume, hydroxyl ethyl methyl cellulose and natural guar gum, the viscosity and strength can be further improved due to the glycine betaine and natural guar gum, the elastic performance can be regulated according to the condition, and the aqueous dispersion effect in various water qualities can be resisted.

Description

technical field [0001] The invention relates to a grouting material, in particular to a water dispersion-resistant grouting material. Background technique [0002] Grouting grout is generally divided into two categories: single-liquid grout and double-liquid grout: (1) single-liquid grout is mainly made of fly ash, sand, cement, water, admixture, etc., and this grout can be divided into It is an inert slurry and a hard slurry. There is no or a small amount of cement added to the inert slurry. Because the cement is added to the hard slurry, it has a certain early strength and later strength. The single-liquid slurry has the advantages of simple construction technology and is not easy to block pipes, and is widely used in the grouting of shield tunneling; (2) The double-liquid slurry is mainly composed of cement and water glass. It has the advantages of high strength and is not easy to penetrate into the surrounding soil, which is conducive to the stability of the tunnel. It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
Inventor 魏建民崔清彬王玉文赵延景王延国黄振奇苗建华石万顺刘晓超纪海玲
Owner DONGHAI CONSTR GRP
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