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Gypsum-based composite material for self-insulation wall and preparation method of gypsum-based composite material

A composite material and gypsum-based technology, which is applied in the field of gypsum-based composite materials for self-insulating walls and its preparation, can solve the problems of limiting the high performance of wall materials and engineering applications, reducing the comprehensive performance of wall materials, and high water absorption. problems, to achieve the effect of increasing industrial profits, improving water resistance and strength, and small pore size

Active Publication Date: 2016-10-12
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although adding lightweight aggregates can effectively reduce the density level of wall materials, lightweight aggregates generally have a large water absorption rate and poor frost resistance, which will reduce the comprehensive performance of wall materials and limit the wall materials to a certain extent. High performance and engineering application of wall materials

Method used

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  • Gypsum-based composite material for self-insulation wall and preparation method of gypsum-based composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 31 parts of hemihydrate gypsum powder, 5 parts of cement, 15 parts of fly ash, 4 parts of quicklime, 2 parts of mineral powder, 3 parts of expanded silica gel, 1 part of microsilica fume, 3 parts of modified additives, and 0.05 parts of foaming agent and 36 parts of water.

[0029] The modified additives used are: in parts by weight, composed of 1 part of cellulose ether, 20 parts of water reducing agent, 9 parts of silicone water repellent, 15 parts of acrylic emulsion, 7 parts of anti-alkali agent, and 10 parts of calcium chloride , 8 parts of lithium carbonate, 11 parts of sodium oxalate, 15 parts of sodium hydroxide and 4 parts of paraffin.

[0030] A gypsum-based composite material for self-insulating walls. The micro-foaming agent used is composed of 35 parts of sodium lauryl alcohol ether sulfate and 65 parts of calcium stearate.

[0031] The water reducing agent used is: standard polycarboxylate mother liquor, without retarding components, with a solid co...

Embodiment 2

[0039] Weigh 33.4 parts of hemihydrate gypsum powder, 10 parts of cement, 12 parts of fly ash, 3 parts of quicklime, 1 part of mineral powder, 8 parts of expanded silica gel, 0.5 parts of microsilica fume, 2 parts of modified additives, and Foam agent 0.1 part and water 30 parts.

[0040] The modified additives used are: in parts by weight, 0.5 parts of cellulose ether, 19 parts of water reducing agent, 9 parts of silicone water repellent, 16 parts of acrylic emulsion, 6 parts of anti-alkali agent, 13 parts of calcium chloride , 7 parts of lithium carbonate, 10 parts of sodium oxalate, 15.5 parts of sodium hydroxide and 4 parts of paraffin.

[0041] A gypsum-based composite material for self-insulating walls, the micro-foaming agent used is composed of 40 parts of sodium lauryl alcohol ether sulfate and 60 parts of calcium stearate.

[0042] The water reducing agent used is: standard polycarboxylate mother liquor, without retarding components, with a solid content of 40%.

...

Embodiment 3

[0050]Weigh 31.5 parts of hemihydrate gypsum powder, 15 parts of cement, 10 parts of fly ash, 3 parts of quicklime, 1 part of mineral powder, 5 parts of expanded silica gel, 0.5 parts of microsilica fume, 2 parts of modified additives, and 0.08 parts of foaming agent and 32 parts of water.

[0051] The modified additives used are: in parts by weight, 1.5 parts of cellulose ether, 18 parts of water reducer, 12 parts of silicone water repellent, 15 parts of acrylic emulsion, 5 parts of anti-alkali agent, 12 parts of calcium chloride , 6 parts of lithium carbonate, 12 parts of sodium oxalate, 15.5 parts of sodium hydroxide and 4 parts of paraffin.

[0052] A gypsum-based composite material for self-insulating walls. The micro-foaming agent used is composed of 45 parts of sodium lauryl alcohol ether sulfate and 55 parts of calcium stearate.

[0053] The water reducing agent used is: standard polycarboxylate mother liquor, without retarding components, with a solid content of 40%....

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Abstract

The invention relates to a gypsum-based composite material for a self-insulation wall and a preparation method of the gypsum-based composite material. The material is prepared from dry materials and an aqueous solution, wherein the dry materials comprise semi-hydrated gypsum powder, cement, fly ash, quicklime, mineral powder, expansion silica gel and silica fume; the aqueous solution is prepared from a modified additive, a fine foaming agent and water. The dry materials are added after the aqueous solution is evenly stirred, the mixture is stirred rapidly continuously to be mixed with air, so that microbubbles are formed and can be mixed homogeneously with the gypsum mixture, and the production efficiency and the stability are improved. The gypsum-based composite material for the self-insulation wall has the advantages of being light, high in strength, thermal-insulating, sound-insulating, water resistant, alkali-resistant, capable of being molded through quick pouring and the like.

Description

Technical field: [0001] The invention relates to a gypsum-based composite material for self-insulating walls and a preparation method thereof, belonging to the field of building materials. Background technique: [0002] With the increasing global energy crisis and environmental degradation, the policy of building green energy conservation has been vigorously promoted by government departments, and wall self-insulation materials, as the main way of building energy conservation, have huge market development potential. [0003] Gypsum is one of the three major cementitious materials in building materials. Building gypsum products have been produced and applied in my country for decades, and self-insulating wall materials based on industrial by-product gypsum are one of them. . At present, the bulk density of domestic gypsum-based wall materials is generally high, and the internal pore structure of the product is loose, thereby reducing its strength and water resistance. Popula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B7/02C04B14/06C04B18/08C04B18/12C04B18/14C04B22/06C04B22/10C04B22/12C04B24/00C04B24/04C04B24/26C04B24/38C04B24/42C04B103/30C04B103/60
CPCC04B28/145C04B2201/30C04B7/02C04B18/08C04B22/064C04B18/146C04B18/12C04B14/064C04B24/383C04B24/42C04B24/26C04B22/124C04B22/10C04B24/04C04B22/062C04B24/00C04B38/02C04B2103/302C04B2103/603Y02W30/91
Inventor 耿飞尹万云汤维金仁才桂敬能殷建邵传林秦庆东
Owner SOUTHEAST UNIV
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