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A kind of geopolymer grouting material and preparation method thereof

A technology of geopolymer and grouting materials, which is applied in the field of geopolymer grouting materials and its preparation, can solve the problems of non-adjustable setting time, unstable performance, and narrow application range, and achieve gel time and fluidity performance indicators. Adjustment and operation are simple, and the effect of improving the comprehensive performance of the use

Active Publication Date: 2016-08-17
GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the geopolymer grouting material of the invention solves the problems of high strength and fluidity of some geopolymer grouting materials, it has low strength, unadjustable setting time, narrow application range and unstable performance.
[0010] Existing literature reports and related patents only involve grouting materials for a specific engineering site, and there are still problems such as low strength, non-adjustable setting time, narrow application range, and unstable performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A geopolymer grouting material, prepared from 91kg of slag, 20kg of alkali activator, 67 fly ash and 0.5kg of retarder to prepare inorganic silicate composite material; and then prepared by mixing 100kg of inorganic silicate composite material with 30kg of water to make.

[0029] The preparation method of above-mentioned geopolymer grouting material, the preparation steps of above-mentioned geopolymer grouting material:

[0030] (1) Preparation of inorganic silicate composite material: put 91kg of slag, 16kg of alkali activator, 67% of fly ash and 0.5kg of retarder into a mixer, and mix and stir for 5 minutes at normal temperature and pressure to obtain An inorganic silicate composite material; the slag is ground to 800 mesh slag powder by quenching and granulating blast furnace slag, the fly ash is 600 mesh fly ash whose quality reaches the second grade or above, and the alkali activator is The modulus is 1.6 and the fineness is 16kg of instant powdered water glass at...

Embodiment 2

[0034] A geopolymer grouting material, the inorganic silicate composite material is prepared from 75kg of slag, 70kg of fly ash, 28kg of alkali activator and 1kg of setting retarder; and then prepared by mixing 100kg of inorganic silicate composite material with 38kg of water to make.

[0035] The preparation method of above-mentioned geopolymer grouting material, the preparation steps of above-mentioned geopolymer grouting material:

[0036] (1) Preparation of inorganic silicate composite material: put 71kg of slag, 70kg of fly ash, 28kg of alkali activator and 1kg of retarder into a mixer, and mix and stir for 10 minutes at normal temperature and pressure to obtain a An inorganic silicate composite material; the slag is ground to 800 mesh slag powder by quenching and granulating blast furnace slag; The number is 1.6 fineness at 600 order 28kg instant powder water glass, retarder is the mixture powder of 450 order 0.5kg sodium dihydrogen phosphate and 0.5kg potassium dihydroge...

Embodiment 3

[0040] A geopolymer grouting material, prepared from 93kg of slag, 66kg of fly ash, 18kg of alkali activator and 1.6kg of retarder to prepare inorganic silicate composite material; and then prepared by mixing 100kg of inorganic silicate composite material with 32kg of water to make.

[0041] The preparation method of above-mentioned geopolymer grouting material, the preparation steps of above-mentioned geopolymer grouting material:

[0042] (1) Preparation of inorganic silicate composite material: put 93kg of slag, 66kg of fly ash, 18kg of alkali activator and 1.6kg of retarder in a mixer, and mix and stir for 8 minutes at normal temperature and pressure to obtain An inorganic silicate composite material; the slag is ground to 800 mesh slag powder by quenching and granulating blast furnace slag, the fly ash is 600 mesh fly ash whose quality reaches the second grade or above, and the alkali activator is The modulus is 1.6 and the fineness is 18 kg of instant powdered water gla...

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Abstract

The invention discloses a geopolymer grouting material and a preparation method thereof. An inorganic silicate composite material is prepared from 71-91 parts of mineral waste residues, 66-70 parts of coal ashes, 16-28 parts of alkali-activator and 0.5-1.6 parts of retarder; and then, the inorganic silicate composite material is mixed with water according to a proportion of 0.30-0.38 to prepare the geopolymer grouting material. The geopolymer grouting material disclosed by the invention has characteristics of being good in liquidity, high in early strength, free of shrinkage, good in durability, adjustable in setting time and strength. Compared with the conventional geopolymer polymer material, the material is a composite material formed by mixing various powder materials, and can be applied by adding water and stirring on the spot; the geopolymer grouting material is simple in preparation process, low in cost, convenient to operate, capable of being widely applied to cement concrete pavement slab bottom grouting, cement concrete pavement crack repairing, foundation bolt anchoring, equipment installing, pres-stressed bridge crack pouring, engineering repairing, reinforcing, and the like.

Description

technical field [0001] The invention belongs to the technical field of inorganic composite materials, and relates to a geopolymer grouting material and a preparation method thereof. Background technique [0002] Geopolymer is a new type of aluminosilicate inorganic gel formed by the reaction of active aluminosilicate materials (metakaolin, clay, slag, fly ash, silica fume, etc.) with strong alkali or strong alkali silicate solution. Material. In 1978, the famous French scientist Davidovits first named this material geopolymer and proposed the reaction mechanism of geopolymer. Due to the advantages of rapid hardening and early strength, corrosion resistance, environmental protection, high temperature resistance and good durability, geopolymers are widely used in construction materials, traffic repairs, heavy metal ion adsorption, nuclear waste treatment and other fields. In recent years, due to the high cost of cement-based grouting materials and chemical grouting materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/08C04B22/16C04B103/22
Inventor 刘乐平谭华覃润浦邓家喜崔学民
Owner GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD
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