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Quick-hardening inorganic filling support material for mine and its application method

A mining and inorganic technology, which is applied in the field of fast-hardening inorganic filling and supporting materials for mining, can solve the problems of difficult to play a supporting role, complicated construction process, slow curing speed, etc. The effect of strength requirements

Active Publication Date: 2016-08-31
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above-mentioned patent is light and non-combustible, it has disadvantages such as complex construction process, slow curing speed, low strength (3D strength is only 1.4MPa), low compressibility (compression deformation rate is 2%), lower residual strength, and obvious brittleness. , and it is only suitable as a filling material for high risk areas, and it is difficult to play a supporting role

Method used

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  • Quick-hardening inorganic filling support material for mine and its application method
  • Quick-hardening inorganic filling support material for mine and its application method
  • Quick-hardening inorganic filling support material for mine and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 and Figure 4 As shown, the rapid-hardening inorganic filling and supporting material for mines in this embodiment is composed of component A and component B. The component A is composed of the following raw materials: 9700g of sulphoaluminate cement clinker, XWZ-A type Composite admixture 300g, AH-1 type air-entraining agent 3g, aluminum powder 2g, sodium tripolyphosphate 50g, polypropylene fiber 90g, of which XWZ-A type composite admixture includes naphthalene series superplasticizer 45g, sodium metaaluminate 135g, 75g sodium carboxymethyl cellulose, 45g sodium gluconate; component B is composed of the following raw materials: 8000g gypsum, 1700g quicklime, 300g XWZ-B composite admixture, 3g sodium lauryl sulfate, 2g aluminum powder, Sodium hexametaphosphate 50g, alkali-resistant glass fiber 90g, of which XWZ-B type composite admixture includes melamine superplasticizer 36g, citric acid 75g, water-soluble polyvinyl alcohol 24g, sodium sulfate 165g.

[...

Embodiment 2

[0037] like figure 2 and Figure 4 As shown, the rapid-hardening inorganic filling and supporting material for mines in this embodiment is composed of component A and component B, and the component A is composed of the following raw materials: 9600g of sulphoaluminate cement clinker, XWZ-A type Composite admixture 400g, AH-1 type air-entraining agent 4g, sodium hexametaphosphate 20g, wood fiber 50g, of which XWZ-A type composite admixture includes melamine superplasticizer 60g, sodium sulfate 180g, hydroxypropyl methyl Cellulose 100g, citric acid 60g; component B is composed of the following raw materials: flue gas desulfurization gypsum 8500g, quicklime 1100g, XWZ-B type composite admixture 400g, a-olefin sulfonate sodium 4g, sodium tripolyphosphate 20g, anti-alkali 50g of glass fiber, of which the XWZ-B type composite admixture includes 48g of polycarboxylate superplasticizer, 100g of citric acid, 32g of sodium carboxymethylcellulose, and 220g of sodium carbonate.

[0038...

Embodiment 3

[0046] like image 3 and Figure 4 As shown, the rapid-hardening inorganic filling and supporting material for mines in this embodiment is composed of component A and component B. The component A is composed of the following raw materials: 9500g of sulphoaluminate cement clinker, XWZ-A type Composite admixture 500g, AH-1 air-entraining agent 10g, aluminum powder 5g, sodium hexametaphosphate 100g, polypropylene fiber 200g, of which XWZ-A composite admixture includes melamine superplasticizer 75g, sodium carbonate 225g, Carboxymethylcellulose sodium 125g, borax 75g; Component B consists of the following raw materials: phosphogypsum 7800g, quicklime 1700g, XWZ-B type composite admixture 500g, rosin resin 10g, aluminum powder 5g, sodium hexametaphosphate 100g, 200g of alkali-resistant glass fiber, of which the XWZ-B type composite admixture includes 60g of polycarboxylate superplasticizer, 125g of sodium gluconate, 40g of sodium carboxymethylcellulose, and 275g of sodium carbonat...

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Abstract

The invention discloses a fast-hardening inorganic filling support material for mines, which is composed of component A and component B, and the component A is composed of the following raw materials in parts by weight: sulphoaluminate cement clinker 93-97 part, 2-5 parts of XWZ-A type composite admixture, 0.01-0.1 part of air-entraining agent, 0.0-0.05 part of air-entraining agent, 0.2-1.0 part of foam stabilizer, 0.25-2 part of fiber; the component B consists of The raw materials are composed of the following parts by weight: 75-88 parts of gypsum, 10-25 parts of lime, 2-5 parts of XWZ-B composite admixture, 0.01-0.1 part of air-entraining agent, 0.0-0.05 part of air-entraining agent, foam stabilizer 0.2-1.0 parts, fiber 0.25-2 parts. The filling and supporting material prepared by the invention has the characteristics of quick setting, light weight, quick hardening, early strength, good compressibility, high residual strength, good air tightness, etc., and is especially suitable for mine filling and supporting.

Description

technical field [0001] The invention belongs to the technical field of mine filling and supporting, and in particular relates to a quick-hardening inorganic filling and supporting material for mines and its application method. . Background technique [0002] During the excavation or use of coal mine roadways, due to the broken roof or the impact of mining, the roadway will have roof fall or super high areas. At present, polymer materials are mainly used for grouting reinforcement or filling. The cost of polymer materials is high, toxic, Corrosive, and it is easy to foam in the presence of water, which reduces the flame retardancy and has the risk of spontaneous combustion; in addition, the ventilated closed wall is one of the common ventilated structures. The traditional closed wall construction methods mainly include brickwork, pouring concrete, and water Sediment spraying and other methods have problems such as large material transportation volume, long construction perio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B28/14
Inventor 熊祖强李东华王雨利袁印张耀辉
Owner HENAN POLYTECHNIC UNIV
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