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Geopolymer composite grouting material and its preparation and use method

A composite grouting and geopolymer technology, which is applied in the field of grouting materials, can solve the problems of only reaching the compressive strength, slow release of potential activity, and high cost of grouting materials, and achieve stable strength growth, improved fluidity, and enhanced grouting. The effect of the slurry effect

Active Publication Date: 2017-05-31
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing defects: First, due to the slow release of potential activity of steel slag, slag and fly ash, the early strength of this grouting material is low; second, because it contains more gypsum, its water resistance is also poor; third, the cost performance is poor, Although the material cost is reduced by using solid waste, it also reduces the performance of the material, especially the 28-day compressive strength only reaches 3.0MPa
The defects that exist are: the one, high cost, due to the use of ultra-fine cement accounting for more than 54% of the total weight, and the price of ultra-fine cement is more expensive, the cost of the grouting material is also higher; the other is poor cost performance, in terms of cost Under higher conditions, the 28-day compressive strength only reaches 15MPa

Method used

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  • Geopolymer composite grouting material and its preparation and use method
  • Geopolymer composite grouting material and its preparation and use method
  • Geopolymer composite grouting material and its preparation and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Put 7kg of cement clinker, 20kg of blast furnace slag, 17kg of metal mine tailings and 4kg of quicklime into a ball mill for grinding for 30 minutes, then put 10kg of metakaolin and 35kg of fly ash into the ball mill to continue grinding until the fineness reaches 45μm square hole sieve The balance is not more than 30%, and finally add 5kg of silica fume, 1.2kg of water reducer and 0.9kg of dispersible latex powder and mix well.

[0039] Mix the grouting material prepared by the above method with water at a weight ratio of 1:0.65 (that is, the water-cement ratio is 0.65), and its properties are as follows:

[0040]

Embodiment 2

[0042] Put 5kg of cement clinker, 15kg of blast furnace slag, 20kg of metal mine tailings and 6kg of quicklime into a ball mill for grinding for 30 minutes, then put 12kg of metakaolin and 42kg of fly ash into the ball mill and continue grinding until the fineness reaches 45μm square hole sieve The balance is not more than 30%, and finally add 3kg of silica fume, 1.0kg of water reducer and 0.6kg of dispersible latex powder and mix well.

[0043] Mix the grouting material prepared by the above method with water at a weight ratio of 1:0.65 (that is, the water-cement ratio is 0.65), and its properties are as follows:

[0044]

Embodiment 3

[0046] Put 6kg of cement clinker, 17kg of blast furnace slag, 18kg of metal mine tailings and 5kg of quicklime into a ball mill for grinding for 30 minutes, then put 11kg of metakaolin and 40kg of fly ash into the ball mill and continue grinding until the fineness reaches 45μm square hole sieve The balance is not more than 30%, and finally add 4kg of silica fume, 1.1kg of water reducing agent and 0.7kg of dispersible latex powder and mix well.

[0047] Mix the grouting material prepared by the above method with water at a weight ratio of 1:0.65 (that is, the water-cement ratio is 0.65), and its properties are as follows:

[0048]

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Abstract

The invention discloses a geopolymer composite grouting material and its preparation and application method. The fine powder prepared by uniformly mixing with dispersible latex powder according to a certain proportion and grinding requires that the sieve with a fineness of 45 μm is not more than 30%. The invention adopts solid waste blast furnace slag, fly ash and metal mine tailings, which reduces the cost of materials, improves the fluidity of materials, and can increase the compressive strength of geopolymer composites without increasing the cost. Grouting material.

Description

technical field [0001] The invention relates to the field of civil engineering materials, in particular to a grouting material used in civil engineering. Background technique [0002] Grouting reinforcement technology is a technology widely used in various fields of civil engineering, and the grouting material is the basis for completing the grouting project. The grouting material used in the grouting project is prepared by mixing the main agent (main raw material), solvent (water or other solvents) and various admixtures (curing agent, accelerator, retarder, etc.) in a certain proportion. of liquid. Commonly used main agents include inorganic materials and organic materials. Inorganic materials include cement, water glass, bentonite and other grouting materials; organic materials include lignin, acrylamide, polyurethane, and epoxy resin. , methyl methacrylate and other grouting materials. [0003] Although the commonly used cement grouting materials have the advantages o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/10C04B18/30
CPCY02W30/91
Inventor 王立华张明川殷险峰王常如
Owner SHANDONG UNIV OF SCI & TECH
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