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Coal ash and mineral powder-based geopolymer quick setting type rigid repair mortar and preparation method thereof

A technology for repairing mortar and fly ash, applied in cement production and other directions, can solve the problems of low utilization rate, large output, and no high added value/high dosage utilization, etc., and achieve the effect of reducing production energy consumption

Active Publication Date: 2018-09-28
BEIJING BUILDING MATERIALS ACADEMY OF SCI RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fly ash and mineral powder are widely used as admixtures in cement and concrete, mainly because the addition of fly ash and mineral powder can improve the performance of cement and concrete, while fly ash and mineral powder are industrial by-products , the annual output is large, but the utilization rate is not high. After being widely used in cement and concrete, it conforms to the national low-carbon and green environmental protection trend. However, fly ash and mineral powder are only used as admixtures in building materials. Did not obtain high added value / high dosage utilization

Method used

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  • Coal ash and mineral powder-based geopolymer quick setting type rigid repair mortar and preparation method thereof
  • Coal ash and mineral powder-based geopolymer quick setting type rigid repair mortar and preparation method thereof
  • Coal ash and mineral powder-based geopolymer quick setting type rigid repair mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A fast-setting rigid repair mortar prepared by using industrial by-product fly ash, slag powder, and tailings fine sand, its solid component materials, in parts by weight, include:

[0044]30 parts of tailings fine sand with a particle size of 0.3-0.5mm;

[0045] 24 parts of tailings fine sand with particle size less than 0.3mm;

[0046] 13 parts of Class I fly ash;

[0047] 29.95 parts of S95 mineral powder;

[0048] Redispersible latex powder 5010 1.5 parts;

[0049] 1.3 parts of retarder sodium carbonate;

[0050] Water retaining agent HPMC 15,000 0.1 parts;

[0051] 0.15 parts of 8mm polypropylene fiber.

[0052] Its liquid component materials include the following components in parts by weight:

[0053] Mass fraction is 35 parts of sodium hydroxide solution of 34%;

[0054] Solid content is 60 parts of water glass solution of 55%;

[0055] 5 parts of water.

[0056] Mix the solid component material and the liquid component material separately, and then mix...

Embodiment 2

[0061] A fast-setting rigid repair mortar prepared by using industrial by-product fly ash, slag powder, and tailings fine sand, its solid component materials, in parts by weight, include:

[0062] 35 parts of tailings fine sand with a particle size of 0.3-0.5 mm;

[0063] 25 parts of tailings fine sand with particle size less than 0.3mm;

[0064] 10 parts of Class I fly ash;

[0065] 29.95 parts of S95 mineral powder;

[0066] Redispersible latex powder 5010 1.0 parts;

[0067] 1.0 part of retarder sodium carbonate;

[0068] 15,000 0.05 copies of water retaining agent HPMC;

[0069] 0.10 parts of 8mm polypropylene fiber.

[0070] The liquid component material includes the following components in parts by weight:

[0071] Mass fraction is 40 parts of 34% sodium hydroxide solution;

[0072] Solid content is 56 parts of water glass solutions of 55%;

[0073] 4 parts of water.

[0074] Separately mix the solid component material and the liquid component material, and then...

Embodiment 3

[0078] A fast-setting rigid repair mortar prepared by utilizing industrial by-products fly ash, slag powder and tailings fine sand, its solid component materials, in parts by weight, include:

[0079] 26 parts of tailings fine sand with a particle size of 0.3-0.5 mm;

[0080] 23 parts of tailings fine sand with particle size less than 0.3mm;

[0081] Class I fly ash 16 parts;

[0082] 29.95 parts of S95 mineral powder;

[0083] Redispersible latex powder 5010 2.0 parts;

[0084] 1.5 parts of retarder sodium carbonate;

[0085] Water retaining agent HPMC 15,000 0.1 parts;

[0086] 0.2 part of 8mm polypropylene fiber.

[0087] The liquid component material includes the following components in parts by weight:

[0088] Mass fraction is 25 parts of sodium hydroxide solution of 34%;

[0089] Solid content is 60 parts of water glass solution of 55%;

[0090] 15 parts of water.

[0091] Separately mix the solid component material and the liquid component material, and then m...

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Abstract

The invention provides quick setting type rigid repair mortar prepared from industrial byproducts such as coal ash, mineral powder and tailing fine sand as well as a preparation method of quick setting type rigid repair mortar. The coal ash and mineral powder-based geopolymer quick setting type rigid repair mortar consists of a solid component material and a liquid component liquid; the solid component material is formed by combining the coal ash, the mineral powder, the tailing fine sand and a chemical additive according to a certain proportion; the liquid component material is formed by mixing a sodium hydroxide solution with a certain concentration, waster glass and water according to a certain proportion; and the solid component material and the liquid component material are stirred completely and uniformly according to a certain proportion, and the quick setting type rigid repair mortar can be used. The coal ash and mineral powder-based geopolymer quick setting type rigid repair mortar prepared by the method has excellent performance and completely meets each perform index requirement of JC / T 2381-2016. The main raw materials of the coal ash and mineral powder-based geopolymerquick setting type rigid repair mortar are industrial byproducts such as the coal ash, the mineral powder and the tailing fine powder and belong to environment-friendly materials.

Description

technical field [0001] The invention relates to the preparation of special mortar by using industrial by-product fly ash, slag powder and tailings fine sand, in particular to a fast-setting rigid repair mortar based on fly ash and slag powder base polymer and a preparation method thereof. Background technique [0002] Geopolymers (referred to as geopolymers) refer to three-dimensional network gels with amorphous and quasi-crystalline characteristics, which are formed by using natural minerals or minerals with hydraulically active minerals to aggregate silicon-oxygen tetrahedrons and aluminum-oxygen tetrahedrons. , are chemically similar to zeolites. The production energy consumption of geopolymer is low, which is only 30% of the energy consumption of cement production. Geopolymer has excellent properties such as good durability, strong impermeability, early strength and rapid hardening, etc. It is used in building materials, high-strength materials, sealing materials etc. h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/72
CPCC04B28/006C04B2111/72C04B2201/50C04B18/12C04B18/08C04B14/02C04B2103/0057C04B2103/22C04B2103/465C04B16/0633C04B22/062C04B12/04Y02P40/10
Inventor 黄天勇程国东刘泽陈旭峰
Owner BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
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