Chemical soluble glass slurry for reinforcing and preventing leakage

A water glass and chemical slurry technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of construction environment pollution, complex slurry ratio, corrosion of common grouting equipment, etc. Better than adjustability, the effect of improving compressive strength

Inactive Publication Date: 2010-02-24
BEIJING CHINA COAL MINE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Water glass series chemical grouting material has been studied by many people as non-toxic grouting material. Invention patent CN 101265059A such as Li Zhiguo uses sulfuric acid as the water glass solution grouting material of curing agent. The environment causes pollution, causing defects such as corrosion to common grouting equipment; Guangzhou Institute of Chemistry invention patent CN 86107196

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] Example 1

[0015] 38Be' water glass 3.50L, ethylene glycol ethyl ether acetate 0.35L, water 1.15L.

[0016] The grout of the present invention has an initial temperature of 27°C and a gel time of 8.8 minutes. It is used in a laboratory to simulate a fissure table with a fissure length of 6 m and a fissure width of 1 mm. Water is pressed 1 hour after the grouting is completed, and water does not flow out of the fissure at a water pressure of 12 MPa.

Example Embodiment

[0017] Example 2

[0018] 38Be' water glass 1.55L, ethylene glycol ethyl ether acetic acid 0.15L, water 3.30L. The grout of the present invention has an initial temperature of 26.5°C and a gel time of 55 minutes. It is used in a laboratory to simulate a fissure table with a fissure length of 6 m and a fissure width of 1 mm. Water is back-pressurized 2 hours after the grouting is completed, and water does not flow out of the fissure at a water pressure of 8 MPa.

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PUM

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Abstract

The invention is a chemical soluble glass slurry for reinforcing and preventing leakage. The chemical slurry uses ethylene glycol monoethyl ether acetate as curing agent and soluble glass as main component. Based on 100 parts of slurry, the volume ratio of each component is as follows: 15-70 parts of soluble glass, 2.5-14 parts of ethylene glycol monoethyl ether acetate and water for the rest. Thegrouting material has the characteristics of large dispersion range, good penetration, adjustable curing time, simple operation, and the like. The slurry gel is nontoxic and has relatively higher pressure resistance. The invention can be widely used for preventing leakage in dam foundation, and has broad application prospect in water blocking and reinforcing project.

Description

Technical field: [0001] The invention can be used in water conservancy project plugging and anti-seepage, engineering fields such as water plugging and reinforcement of micro-cracked formations and porous formations in mine construction. In particular, a water glass reinforced plugging chemical slurry with long diffusion distance, high permeability, adjustable gel time and simple construction operation. Background technique: [0002] Water conservancy and hydropower projects, mine projects, geological exploration projects, tunnel underground chamber projects and municipal underground projects often use the grouting method for waterproofing and plugging. However, there are currently many grouting problems in many projects, such as the difficulty of water blocking in micro-cracked formations and the difficulty of water penetration in porous formations. Currently commonly used anti-seepage and plugging materials include cement-based grouting materials and cement-based grouting...

Claims

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Application Information

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IPC IPC(8): C04B28/26C09K8/46
CPCC04B28/26
Inventor 徐润王正胜贺文
Owner BEIJING CHINA COAL MINE ENG CO LTD
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