Prefabricated low-mass, heat-preservation and noise-reduction wallboard and preparation method thereof

A technology of prefabricated assembly and noise reduction wall, applied in building components, climate change adaptation, construction, etc., can solve the problems of unsatisfactory thermal insulation and noise reduction effect, high construction period and cost, unsatisfactory strength, etc., and achieves remarkable noise reduction effect. , the effect of shortened maintenance time and convenient pre-embedded pipelines

Active Publication Date: 2019-11-05
绍兴华放新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing wallboard construction methods are bricklaying or cast-in-place formwork, which is labor-intensive, consumes a lot of materials, and the construction period and cost are relatively high.
Although there are some prefabricated wall panels on the market, they generally have the disadvantages of being heavy and inconvenient to transport, and the prefabricated wall p

Method used

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  • Prefabricated low-mass, heat-preservation and noise-reduction wallboard and preparation method thereof
  • Prefabricated low-mass, heat-preservation and noise-reduction wallboard and preparation method thereof
  • Prefabricated low-mass, heat-preservation and noise-reduction wallboard and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0045] The preparation method of prefabricated lightweight thermal insulation and noise reduction wallboard includes the following steps:

[0046] 1) First make a reinforced concrete layer, and pre-bury the steel bars for connecting the middle layer and the other outer layer before solidification, so that the steel bars penetrate the surface of the reinforced concrete layer.

[0047] 2) After being solidified, the whole is turned over, butt against another newly poured reinforced concrete layer, so that the steel bars are inserted into another reinforced concrete layer to form a two-layer hollow body.

[0048] 3) After solidification, erect the hollow body vertically, install the template at the bottom, and pour the pouring material for the interlayer of the porous mixture;

[0049] 4) After curing for 20-30 hours in a constant temperature and humidity environment (temperature 40-80°C, humidity RH95% or more), the finished product is obtained.

Embodiment 1

[0051] A prefabricated lightweight heat-insulating and noise-reducing wallboard includes a three-layer structure: two outer layers are reinforced concrete layers, and the middle layer is a porous mixed interlayer; the wallboard is provided with three-layer steel bars; the porous The mixed interlayer contains bamboo and wood mixed fibers. The thickness ratio of the three-layer structure of the outer layer, the middle layer, and the outer layer is 1:1:1 (total thickness of 16 cm).

[0052] Among them, the castable of the interlayer of the porous mixture includes the following components in terms of mass percentage:

[0053] Portland cement 17.58 parts,

[0054] 41.42 parts of bamboo and wood mixed fiber (mass ratio 0.815:0.185),

[0055] 39.1 parts of sand,

[0056] 8.15 parts of water,

[0057] Modified admixture (mixing of early-strength water reducing agent and viscosity modifier) ​​0.15 parts.

[0058] The preparation method of prefabricated lightweight thermal insulation and noise re...

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Abstract

The invention relates to the technical field of wallboards, and discloses a prefabricated low-mass, heat-preservation and noise-reduction wallboard and a preparation method thereof. The wallboard comprises a three-layer structure: two outer side layers are reinforced concrete layers, and a middle layer is a porous mixture sandwich layer; reinforcements penetrating through the three layers are arranged in the wallboard; and bamboo and wood mixed fibers are arranged in the porous mixture sandwich layer. The preparation method comprises the following steps: 1) one reinforced concrete layer is prepared; the reinforcements are embedded before solidification; and the two ends of the reinforcements penetrate through the surface of the reinforced concrete layer; 2) after solidification, the reinforced concrete layer is in vertical butt joint with the other reinforced concrete layer just cast; and the reinforcements are inserted in the other reinforced concrete layer to form a two-layer hollowbody; 3) after solidification, the hollow body is vertical for pouring casting materials in the porous mixture sandwich layer; and 4) finished products are obtained after curing in constant-temperature and constant-humidity environments. The wallboard is novel and unique in structure, low in weight, excellent in heat preservation and noise reduction effect and quick in transportation and installation, and can realize large-batch assembly type automatic production.

Description

Technical field [0001] The invention relates to the technical field of wallboards, in particular to a prefabricated and assembled light-weight thermal insulation and noise-reducing wallboard and a preparation method thereof. Background technique [0002] Most of the existing wallboard construction methods are bricklaying or cast-in-place moulding, which is labor intensive, requires a lot of consumables, and the construction period and cost are high. Although there are some prefabricated wall panels on the market, they are generally self-heavy and inconvenient for transportation. At present, the prefabricated wall panels for heat preservation and noise reduction in the market are in order to achieve high temperature and noise reduction effects. , Lightweight porous cement, such as foamed cement, is widely used, which not only has unsatisfactory insulation and noise reduction effect, but also its strength cannot meet the application in many fields (the strength of foamed cement is ...

Claims

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Application Information

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IPC IPC(8): E04C2/288C04B28/04C04B111/40C04B111/52
CPCC04B28/04C04B2111/40C04B2111/52C04B2201/32E04C2/2885C04B18/26C04B14/068C04B2103/302C04B2103/0068Y02A30/244
Inventor 孙学光孙君海
Owner 绍兴华放新材料有限公司
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