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Prefabricated composite wallboard and preparation method thereof

A composite wallboard and prefabricated technology, which is applied to walls, building components, climate change adaptation, etc., can solve the problems that wallboards cannot be fireproof, thermal insulation, light and thin and load-bearing can not be integrated, low thermal conductivity, fire prevention, etc., to achieve low thermal conductivity Coefficient, energy-saving heat insulation effect, effect of reducing heat radiation

Pending Publication Date: 2018-06-12
SANY CONSTR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The first object of the present invention is an assembled composite wallboard, which has the advantages of thinness, low heat conduction, fire prevention, etc., is convenient for transportation and installation, improves the utilization rate of the building area, and solves the problem that the existing wallboard cannot The problem of inability to integrate fire prevention, heat preservation, lightness and load bearing

Method used

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  • Prefabricated composite wallboard and preparation method thereof
  • Prefabricated composite wallboard and preparation method thereof
  • Prefabricated composite wallboard and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Fabrication of prefabricated composite wall panels

[0075] (1) Clean up the platform, build side molds, leave openings for doors and windows, and spray release agent.

[0076] (2) Evenly spray 12mm thick decorative mortar, pave and paste the reinforcement layer; the formula of the mortar is: cement 28kg, sand 55kg, lime 5kg, gypsum 5kg, calcium powder 8kg, titanium dioxide 0.2kg, the reinforcement layer adopts alkali-resistant glass fiber mesh cloth.

[0077] (3) Then spray 10mm thick decorative mortar on the reinforcing layer again (same formula as the second step), and vibrate the decorative protective layer to a uniform thickness, and immediately place the vacuum insulation board coated with 0.5mm thick interface agent on both sides (thickness is 15mm). The placement time should be controlled within 15-20 minutes to ensure that the decorative mortar does not reach the initial setting state.

[0078] (4) When laying vacuum insulation panels, the gap between the pa...

Embodiment 2

[0085] The difference with embodiment 1 is that the formula of the mortar used for the decorative protective layer is different, and the formula of the mortar used is:

[0086] 40 kg of cement, 50 kg of sand, 8 kg of lime, 3 kg of gypsum, 12 kg of calcium powder, and 0.5 kg of iron oxide yellow.

[0087] Other steps and the structure of wallboard are with embodiment 1.

Embodiment 3

[0089] The difference from Example 1 is that the formula of the ceramsite reinforced concrete used in the structural layer is different, which is:

[0090] 60 kg of cement, 3 kg of fly ash, 20 kg of slag, 60 kg of steel slag, 60 kg of ceramsite, 0.05 kg of water retaining agent, 0.2 kg of water reducing agent, and 20 kg of water; the cement is ordinary Portland cement with a strength grade of 42.5R ; The grade of fly ash is grade II; the grade of slag is grade S105; the fineness modulus of steel slag is 3.0~3.3, and the bulk density is 1020~1080kg / m 3 ; Ceramsite is fly ash ceramsite, the particle size of ceramsite is 5-15mm, and the bulk density is 840-870kg / m 3 , cylinder compressive strength ≥ 5.0MPa; water-retaining agent is hydroxypropyl methylcellulose, water-reducing agent is polycarboxylate high-efficiency water-reducing agent.

[0091] Other steps and the structure of wallboard are with embodiment 1.

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Abstract

The invention provides a prefabricated composite wallboard and a preparation method thereof. The prefabricated composite wallboard includes a first decorative protective layer, a reinforcing layer, asecond decorative protective layer, a vacuum insulation board layer and a structural layer which are sequentially attached; the first decorative protective layer and the second decorative protective layer are a mortar layer, the reinforcing layer is a high-strength fiber gridding cloth or a steel wire mesh sheet, and the structural layer is a reinforced concrete layer. According to the prefabricated composite wallboard and the preparation method thereof, the first decorative protective layer, the reinforcing layer, the second decorative protective layer, the vacuum insulation board layer and the structural layer are connected into a whole through connecting pieces, and the five layers of materials adopt strengths and avoid weaknesses, so that the integrated effects of lightness and thinness, high thermal insulation, fire protection, high strength, and high thermal performance are achieved. The prefabricated composite wallboard is more convenient to transport and install, the utilization of the building area is improved, and the problem that existing wallboards cannot integrate fire prevention, thermal insulation, lightness and thinness, and load bearing is solved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an assembled composite wallboard and a preparation method thereof. Background technique [0002] At present, building energy consumption has been ranked alongside industrial energy consumption and transportation energy consumption, and has become the three "big energy consumers" of energy consumption in my country. Building energy consumption (including construction energy consumption, living energy consumption, heating and air conditioning, etc.) accounts for about 30% of the total social energy consumption, the most important of which is heating and air conditioning, accounting for 20%. Therefore, building wall insulation construction technology has emerged as the times require. However, in recent years, fire accidents caused by poor flame retardancy of wall insulation materials have continued, causing serious losses to the life and property of the country and the peo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B2/74E04B1/76C04B28/14C04B28/04
CPCE04B1/7608E04B2/7403C04B28/04C04B28/14C04B2201/32C04B2201/20C04B2201/50C04B7/02C04B14/06C04B22/064C04B14/28C04B14/305C04B18/08C04B18/141C04B18/142C04B18/027C04B24/383C04B24/24C04B14/308Y02A30/244
Inventor 史红彬马志强陈光
Owner SANY CONSTR TECH CO LTD
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