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Cement thermal insulation wallboard

A technology for thermal insulation wall panels and thermal insulation panels, which can be applied to household walls, layered products of hydraulically coagulating substances, and solid waste management. Social benefit, cost reduction effect

Inactive Publication Date: 2017-05-31
NANJING BEILIDA NEW MATERIAL SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the preparation of GRC, many hardened cement pastes compounded with fibers will be produced. During the removal process of the actual factory molding site, this part of waste not only requires a lot of manpower for landfill disposal, but also occupies a large area and wastes resources.

Method used

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  • Cement thermal insulation wallboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) 20% cement, 50% sand, 1% PVA fiber, 1% wood fiber, 2.5% redispersible latex powder, 3% naphthalene sulfonate formaldehyde condensate, 2% calcium chloride, 1% wood calcium , 19.5% water is mixed according to the proportion of weight percentage, and after stirring evenly, it is made into a decorative layer mortar, which is sprayed into a decorative layer;

[0029] (2) Mix 20% cement, 40% waste fiber-reinforced cement particles, 10% hollow glass microspheres, 10% anti-mud and slump-containing polycarboxylate superplasticizer, 10% cellulose ether, 10% water Mix according to the proportion of weight percentage, stir evenly, prepare the closed layer mortar, and spray it on the decorative layer;

[0030] (3) Place the polystyrene insulation board on the sealing layer to make the insulation layer;

[0031] (4) Mix 20% cement, 47% waste fiber-reinforced cement particles, 3% mud-resistant slump-preserving polycarboxylate-containing superplasticizer, 10% fly ash, and 20% wate...

Embodiment 2

[0034] (1) Mix 55% cement, 34.8% sand, 0.1% polypropylene emulsion, 0.1% potassium carbonate, and 10% water according to the proportion by weight, stir evenly to make a decorative layer mortar, and brush to form a decorative layer;

[0035] (2) Mix 50% cement, 20% waste fiber reinforced cement particles, 5% mineral powder, 3% hollow glass microspheres, 1% adsorption group type polycarboxylate water reducer, 10% cellulose ether, 11% Water is mixed according to the proportion of weight percentage, and after stirring evenly, it is prepared into a closed layer mortar, which is brushed on the decorative layer;

[0036] (3) Put the polyurethane foam insulation board on the sealing layer to make the insulation layer;

[0037] (4) Mix 55% cement, 24% waste fiber-reinforced cement particles, 3% high-branched retarding polycarboxylate superplasticizer, 8% silica fume, and 10% water according to the proportion by weight, and stir evenly to prepare Structural layer mortar, brushed on top...

Embodiment 3

[0040] (1) 48% cement, 15% sand, 0.5% PU fiber, 0.5% pulp fiber, 1% styrene-acrylic emulsion, 2% sulfonated melamine formaldehyde condensate, 1% hydroxyethyl cellulose, 1% sulfate, 1% citric acid and 30% water are mixed according to the proportion by weight, and the decorative layer mortar is made after stirring evenly, and the decorative layer is laid;

[0041] (2) Distribute 30% cement, 50% waste fiber-reinforced cement particles, 1% hollow glass microspheres, 1% high-branched retarding polycarboxylate superplasticizer, 3% cellulose ether, and 15% water by weight Prepare the closed layer mortar after mixing evenly, and lay it on the decorative layer;

[0042] (3) Place the foamed concrete insulation board on the closed layer to make the insulation layer;

[0043] (4) Mix 54% cement, 15% waste fiber-reinforced cement particles, 2% high-branched retarding polycarboxylate superplasticizer, 9% metakaolin, and 20% water according to the proportion by weight, and stir evenly to p...

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Abstract

The invention relates to a cement thermal insulation wallboard and a preparation method thereof. particularly, an inorganic closing layer is prepared by combining recovered fiber-reinforced cement material with cement, mineral powder, hollow glass microspheres, a high-performance superplasticizer and cellulose ether, so that the water absorption rate of a thermal insulation layer and the heat conductivity coefficient of the whole thermal insulation wallboard are effectively reduced and the durability of the thermal insulation wallboard is improved. The recovered fiber-reinforced cement material combined with a mineral admixture is added to a glass fiber-enhanced cement (GRC) structure layer, so that the strength of the thermal insulation wallboard is improved. Aggregates and fiber are replaced with waste fiber cement separately, so that the wastes can be efficiently utilized; meanwhile, the defect of poor durability of the thermal insulation wallboard is overcome; the thermal insulation property of the thermal insulation wallboard is improved. The cement thermal insulation wallboard is simple in process, has relatively economical benefits and environmental benefits and belongs to high value-added resource utilization.

Description

technical field [0001] The invention relates to a cement thermal insulation wallboard and a preparation method thereof, which can ensure and improve product performance while reclaiming waste fiber products and reducing costs, and are suitable for building roofs, building curtain walls, wall decoration and other fields. Background technique [0002] Glass fiber reinforced cement (GRC) is a new material with light weight, high strength and shapeability, which is widely used in various construction projects. In terms of the characteristics of the material itself and its ability to adapt to the diversity of building exterior finishes, its most applicable field should be the exterior walls of buildings. Therefore, this material has been greatly developed at home and abroad in the past two decades. Countries with more research and application of GRC exterior wall panels abroad include the United Kingdom, the United States, Germany, Spain, and Japan. In recent years, with the inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/16E04C2/288B32B13/02B32B13/04B32B13/12B32B27/30B32B27/40B32B9/00B32B9/04
CPCB32B13/02B32B13/04B32B13/045B32B13/12B32B13/14B32B27/302B32B2262/0223B32B2262/0253B32B2262/0261B32B2262/0292B32B2262/067B32B2262/108B32B2264/10B32B2264/101B32B2266/0278B32B2266/04B32B2307/304B32B2307/7265B32B2419/00B32B2607/00C04B18/16C04B28/00C04B2201/32E04C2/288C04B14/06C04B16/0641C04B16/02C04B2103/0057C04B24/226C04B22/124C04B24/18C04B22/002C04B14/22C04B2103/302C04B24/383C04B18/08C04B24/2641C04B22/10C04B14/02C04B18/146C04B16/0675C04B18/241C04B24/223C04B22/142C04B24/06C04B14/106Y02W30/91
Inventor 熊吉如袁慧雯
Owner NANJING BEILIDA NEW MATERIAL SYST ENG
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