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Preparation of a geopolymer grouting material and its method for static pressure grouting

A geopolymer and grouting material technology, applied in the field of civil engineering, can solve the problems of excessive deflection value, instability, poor durability, etc.

Active Publication Date: 2019-06-04
JIANGSU ZHUODIAN DRILLING & TUNNELING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the two-component grouting material and preparation method disclosed in the patent document CN102702473A have adopted a foaming agent stabilizer and an epoxy resin material as the base material, which has poor durability and low strength. Although the grouting body can be quickly Treat the temporary uplift of the roadbed, but because its essence is filling grouting, which belongs to the self-hardening reaction or self-consolidating grout of the grouting material, it cannot be cemented with the solid materials of the roadbed and foundation or the cementation strength is very low. The deflection value is too large or unstable under the dynamic load of the automobile wheel

Method used

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Examples

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Effect test

preparation example Construction

[0034] The preparation of the steel slag: ①Water cooling and quenching treatment, specifically using the open-hole slag tank—water quenching method: a. Put the liquid steel slag into the slag tank with the bottom opening (slag discharge hole) and send it to the water quenching pool; b. The slag discharge hole of the slag tank, while the high-temperature liquid steel slag is pouring down slowly, the high-pressure water pump is used to pump water to wash, divide, and crush the liquid steel slag. ; c Grab the cooled steel slag particles with a grab machine; d Dehydrate the steel slag particles, pack them into bags, and use them. ②Powdering (grinding into powder); ③Removing iron metal by magnetic adsorption.

[0035] The slag is a part of the solid mineral complex that is not leached by alkali during the alkali leaching process of the fine ore powder.

[0036] The modulus range of the sodium-based water glass is 1.0-1.2.

[0037] The modulus of the sodium-based water glass refer...

Embodiment 1

[0068] Method for preparing geopolymer grouting material:

[0069] 1) Send the steel slag and slag into the grinding machine for grinding and blending according to the mass ratio. The grinding process steps are as follows: a. Weigh the raw material steel slag and slag according to the mass and put them into the grinding machine; b. Start the ball mill to rotate at a speed of 40~60r / min ; c The grinding bodies (steel balls or pebbles) of different sizes in the ball mill rotate together with the raw materials and squeeze each other to hit the raw material particles, and gradually crush the raw materials to reach a fineness index of 3000~4000 mesh to obtain the component, that is, component A ;

[0070] 2) Weigh the raw materials calcium-based bentonite, silica fume, and composite alkaline activator in parts by mass and put them into the grinder. The grinding process steps are as follows: a. Weigh it and put it into the grinding machine; b start the ball mill to rotate at a spee...

Embodiment 2

[0083] Method for preparing geopolymer grouting material:

[0084] 1) Send the steel slag and slag into the ball mill for grinding and blending according to the mass ratio. The grinding process steps are as follows: a. Weigh the steel slag and slag according to the mass ratio and put them into the ball mill; b. Start the ball mill to rotate at a speed of 50r / min; c. The steel ball rotates with the steel slag and slag and squeezes each other, hits the steel slag and slag particles, and gradually crushes the steel slag and slag to a fineness between 3000 and 4000 mesh to obtain component A;

[0085] 2) Weigh calcium-based bentonite, silica fume, and composite alkaline activator according to mass ratio and put them into the ball mill. The grinding process steps are as follows: a. Ball mill; b start the ball mill to rotate at a speed of 50r / min; c the pebbles in the ball mill rotate together with the calcium-based bentonite, silica fume, and compound alkaline activator and squeeze...

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Abstract

The invention provides a method for preparing a geopolymer grouting material and a method for applying the geopolymer grouting material to static pressure grouting. Raw materials for preparing the geopolymer grouting material include steel slag, mineral slag, sodium silicate, silica fume, calcium bentonite, softened water and a composite alkali activator. The method for preparing the geopolymer grouting material comprises the steps that 1, a component A is prepared; 2, a component B is prepared; 3, a component C is prepared; and 4, the geopolymer grouting material is prepared. The method for static pressure grouting comprises the steps of 1, survey; 2, assessment; 3, pit sounding; 4, hollowing general survey; 5, deflection value check; 6, comprehensive evaluation; 7, measurement and hole arrangement; 8, drilling; 9, grouting; 10, check; 11, grouting hole sealing; and 12, recheck to complete static pressure grouting. The methods have the advantages of environmental friendliness, low viscosity, high elasticity modulus, high cohesiveness, low cost, high efficiency and high durability.

Description

technical field [0001] The invention relates to the preparation of a geopolymer grouting material and its method for static pressure grouting. It specifically relates to the reinforcement of roadbed diseases, or the rapid reinforcement of foundations and dam foundations in building construction projects and water conservancy projects, and belongs to civil engineering technology. field. Background technique [0002] Geopolymer grouting material has attracted much attention due to its non-shrinkage, high strength, fast setting speed and environmental friendliness, and has been applied in the fields of rapid road repair and building foundation reinforcement. It is a rapidly developing grouting treatment technology in recent years. [0003] However, the two-component grouting material and preparation method disclosed in the patent document CN102702473A have adopted a foaming agent stabilizer and an epoxy resin material as the base material, which has poor durability and low stre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00E01C23/10
CPCC04B28/006C04B2111/0075C04B2111/70E01C23/10C04B18/146C04B14/104C04B22/062C04B22/08Y02P40/10
Inventor 刘厚松
Owner JIANGSU ZHUODIAN DRILLING & TUNNELING TECH CO LTD
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