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Modified sodium silicate quick-setting material and preparation method thereof

A sodium silicate and quick-setting technology, applied in the field of modified sodium silicate quick-setting materials and preparation, quick-setting materials and preparation fields, can solve the problems of limited construction conditions, less additive amount, easy to produce pollution, etc. The effect of reducing slurry leakage, improving flow resistance and low cost

Inactive Publication Date: 2021-05-25
SHANDONG LUQIAO GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 1. Various additives are required, such as accelerators, water reducers, retarders, thickeners, etc. The raw materials are complex and the cost is high;
[0012] 2. Some additives are added in a small amount, the required process precision is high, and the construction operation is more complicated;
[0013] 3. After mixing various materials, it is easy to produce pollution and cause safety hazards;
[0014] 4. Due to the structural reasons of the water glass itself, the two-liquid grouting material has not solved the problem of poor structural stability and groundwater erosion resistance after curing;
[0015] 5. It is not suitable for projects with dynamic and static water conditions such as coal mine goafs, and the construction conditions are limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The invention provides a modified sodium silicate quick-setting material, which includes component A and component B; component A includes ordinary Portland cement and fly ash, and component B includes ethylene glycol (EG), acetonitrile Diacid (AA) and water glass;

[0032] Component A: Ordinary Portland cement 70%, fly ash 30%, and unavoidable impurities;

[0033] B component: EG: AA: water glass = 0.7%: 1%: 98.3%, and unavoidable impurities.

[0034] The cement in component A is a powdery hydraulic cementitious material. After hardening, it not only has high strength, but also can resist the erosion of fresh water or salt water; fly ash can save cement consumption, reduce water consumption, and improve the ease of mixing of concrete mixtures. Enhance the pumpability of concrete, reduce the creep of concrete, reduce the heat of hydration and thermal expansion, and improve the impermeability of concrete.

[0035] Water glass in component B is a solid sodium silicate a...

Embodiment 2

[0050] The invention provides a modified sodium silicate quick-setting material, which includes component A and component B; component A includes ordinary Portland cement and fly ash, and component B includes ethylene glycol (EG), acetonitrile Diacid (AA) and water glass;

[0051] Component A: Ordinary Portland cement 60%, fly ash 40%, and unavoidable impurities;

[0052] B component: EG: AA: water glass = 0.7%: 1%: 98.3%, and unavoidable impurities.

[0053] The cement in component A is a powdery hydraulic cementitious material. After hardening, it not only has high strength, but also can resist the erosion of fresh water or salt water; fly ash can save cement consumption, reduce water consumption, and improve the ease of mixing of concrete mixtures. Enhance the pumpability of concrete, reduce the creep of concrete, reduce the heat of hydration and thermal expansion, and improve the impermeability of concrete.

[0054] Water glass in component B is a solid sodium silicate a...

Embodiment 3

[0069] The invention provides a modified sodium silicate quick-setting material, which includes component A and component B; component A includes ordinary Portland cement and fly ash, and component B includes ethylene glycol (EG), acetonitrile Diacid (AA) and water glass;

[0070] Component A: Ordinary Portland cement 40%, fly ash 60%, and unavoidable impurities;

[0071] B component: EG: AA: water glass = 0.7%: 1%: 98.3%, and unavoidable impurities.

[0072] The cement in component A is a powdery hydraulic cementitious material. After hardening, it not only has high strength, but also can resist the erosion of fresh water or salt water; fly ash can save cement consumption, reduce water consumption, and improve the ease of mixing of concrete mixtures. Enhance the pumpability of concrete, reduce the creep of concrete, reduce the heat of hydration and thermal expansion, and improve the impermeability of concrete.

[0073] Water glass in component B is a solid sodium silicate a...

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Abstract

The invention provides a modified sodium silicate quick-setting material and a preparation method thereof. The modified sodium silicate quick-setting material comprises a component A and a component B. The component A comprises ordinary Portland cement and fly ash, and the component B comprises ethylene glycol, adipic acid and water glass. According to the preparation method of the modified sodium silicate quick-setting material, water is added into the component A and the component B respectively, and the modified sodium silicate quick-setting material is prepared according to process steps. The modified sodium silicate quick-setting material is low in cost, convenient to construct, excellent in performance and comprehensive in function, meanwhile, grouting slurry can be quickly solidified and cemented in a channel containing dynamic (static) water, the flow resistance of leaking stoppage slurry is improved, and slurry leakage is reduced.

Description

technical field [0001] The invention relates to a quick-setting material and a preparation method, in particular to a modified sodium silicate quick-setting material and a preparation method, and belongs to the technical field of building materials and mining materials. Background technique [0002] With the progress of grouting theory and the accumulation of engineering practice, the application scope and scale of grouting are gradually expanding, and the grouting materials and construction technology have also been greatly developed. From records, the development of grouting materials has a history of more than 200 years. The grouting materials have developed from clay, lime, and cement to cement-water glass grout, chemical grout, etc. The surrounding rock of underground engineering is complex and changeable, and different geological conditions have different requirements on the types and performance of grouting materials. Selecting appropriate grouting materials can ensur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B111/70C04B111/27
CPCC04B28/26C04B2111/70C04B2201/50C04B2111/27
Inventor 迟作强张思峰夏冲赵宏魁郜建永武剑峰冯啸李献刚
Owner SHANDONG LUQIAO GROUP
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