Geopolymer composite grouting material, and preparation method and use method thereof

A composite grouting and geopolymer technology, applied in the field of grouting materials, can solve the problems of high cost of grouting materials, slow release of potential activity, and limited compressive strength, etc., to achieve enhanced grouting effect, stable strength growth, Effects with little cost impact

Active Publication Date: 2016-01-27
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 preparation method and use method thereof
  • Geopolymer composite grouting material, and preparation method and use method thereof
  • Geopolymer composite grouting material, and preparation method and use method thereof

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 and 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 to 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 a preparation method and a use method thereof. The preparation method comprises the following steps: uniformly mixing cement clinker, metakaolin, silica fume, blast furnace slag, fly ash, metal mine tailing, quicklime, a water reducer and dispersible latex powder according to a certain ratio, and grinding to prepare fine powder until the sieving residue ratio of a square hole sieve with the fineness of 45[mu]m is not greater than 30%. Solid wastes comprising the blast furnace slag, the fly ash and the metal mine tailings are adopted in the invention, so the cost of the material is reduced, the fluidity of the material is improved, and the compressive strength of the geopolymer composite grouting material is also improved without increasing the cost.

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 Applications(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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