Preparation of polymer composite gelling agent for grouting and application method thereof

A composite glue and polymer technology, applied in the field of gelling agent, can solve problems such as complex process, low gel strength, easy to collapse pulp, etc., and achieve good application prospects, wide application and wide performance

Inactive Publication Date: 2012-07-25
JICHANG XIANDAO ENG MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are more or less deficiencies in the existing technology, such as the oar is easy to break after being injected into the empty space, the cost is high, the gel strength is low, the comprehensive p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (A) Composite gelling agent

[0033] According to weight percentage, weigh 20% bentonite, 20% calcium sulfate, 10% calcium hydroxide, 12% vegetable gum, 12% carboxymethyl cellulose, 16% polyacrylamide, 8% carbonic acid Sodium hydrogen, 0.6% sodium hydroxide, and 1.4% ferric chloride were uniformly mixed to prepare a gelling agent.

[0034] (B) slurry preparation (according to parts by mass)

[0035] (1) The loess is sieved into powders with a particle size less than 8mm, and 500 parts of soil and 400 parts of water are evenly mixed into a slurry;

[0036] (2) take 1 part of gelling agent again;

[0037] (3) The gelling agent weighed is added into 100 parts of water and uniformly mixed into an aqueous gelling agent solution;

[0038] (4) Inject the mixed gelling agent aqueous solution into the mud-water slurry under a certain pressure.

[0039] (5) The muddy water slurry injected with the gelling agent aqueous solution is further mixed and stirred, and gel is formed ...

Embodiment 2

[0041] (A) Composite gelling agent

[0042] According to weight percentage, weigh 22% bentonite, 18% calcium sulfate, 5% calcium hydroxide, 20% vegetable gum, 20% carboxymethyl cellulose, 8% polyacrylamide, 5% carbonic acid Sodium hydrogen, 1% sodium hydroxide, and 1% ferric chloride are uniformly mixed to prepare a gelling agent.

[0043] (B) slurry preparation (according to parts by mass)

[0044] (1) The loess is sieved into a powder with a particle size less than 8mm, and 500 parts of soil and 400 parts of water are evenly mixed into a slurry;

[0045] (2) take 5 parts of composite gelling agent again;

[0046] (3) The gelling agent weighed is added into 100 parts of water and uniformly mixed into an aqueous gelling agent solution;

[0047] (4) Inject the mixed gelling agent aqueous solution into the mud-water slurry;

[0048] (5) The mud-water slurry injected with the gelling agent aqueous solution is further mixed and stirred for 6 minutes to form a gel, and simultan...

Embodiment 3

[0050] (A) Composite gelling agent

[0051] According to the percentage by weight, weigh 18% bentonite, 16% calcium sulfate, 15% calcium hydroxide, 10% vegetable gum, 12% carboxymethyl cellulose, 16% polyacrylamide, 10% carbonic acid Sodium hydrogen, 1% sodium hydroxide, and 2% ferric chloride were uniformly mixed to prepare a gelling agent.

[0052] (B) slurry preparation (according to parts by mass)

[0053] (1) The loess is sieved into a powder with a particle size less than 8mm, and 550 parts of soil and 350 parts of water are evenly mixed into a slurry;

[0054] (2) take 2 parts of gelling agent again;

[0055] (3) The gelling agent weighed is added into 100 parts of water and uniformly mixed into an aqueous gelling agent solution;

[0056] (4) Add the mixed gelling agent aqueous solution into the mud-water slurry.

[0057] (5) The mud-water slurry injected with the gelling agent aqueous solution is further mixed and stirred for 5 minutes to form an accumulative mud c...

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Abstract

The invention belongs to the technical field of a gelling agent for geologic hazard control as well as filling control of goaf and waste laneway or collapse craters after exploitation of other mines, and provides a formula and a method of a novel polymer composite gelling agent for grouting. The gelling agent comprises the following components in percentage by weight: 10-25% of bentonite, 5-20% of cellulose, 5-20% of vegetable gum, 10-15% of calcium hydroxide, 10-25% of inorganic hygroscopic agent, 0.5-1.5% of inorganic dispersant, 0.5-2% of inorganic flocculent, 6-18% of organic flocculent, and 5-15% of alkali metal carbonate. The gelling agent is used for processing and crushing, mixing with water, and injecting to slurry for gelling. According to the invention, the characteristics of high-hydroscopicity mineral matters and hydroscopic synthetic resin are sufficiently absorbed and utilized, and various ion groups are introduced and adjusted to obtain specific performance, so that the gelling agent has strong water solubility, can form hydrophile and water-insoluble gel in the slurry, and has excellent adhesion force to solids and dissolved matters in the slurry, good gelling property, strong water control function, high and adjustable jelling speed, low cost and no pollution.

Description

[technical field] [0001] The invention belongs to the technical field of gelling agent in the treatment of geological disasters and the goaf after mining of coal mines and other types of mines, as well as the filling and treatment of waste roadways and subsidence pits, and specifically relates to a polymer composite gelling agent for grouting. [Background technique] [0002] In geological disaster management, there are mainly debris flow control, river silt removal operations, etc. At present, there is no report on the use of gelling agent technology in this regard. Debris flow control mainly adopts measures such as planting turf and cement mortar to reinforce the mountain in advance. There are no good control measures for the formed debris flow, and there are defects such as high treatment cost and few technical means. At present, it can be controlled and prevented through the use of this material: one is to spread the polymer gelling agent in the prone area in advance to m...

Claims

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Application Information

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IPC IPC(8): C04B12/00C04B28/26
Inventor 赵俊延陈新源陈雄赵伟
Owner JICHANG XIANDAO ENG MATERIAL
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