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Cement board

A technology for cement board and cement paste, which is applied to hydraulically condensable layered products, other household appliances, floors, etc., and can solve the problems of metal fastener failure, poor freeze-thaw resistance, and unqualified installation of metal fasteners, etc. problem, achieve the effect of improving the bending strength and toughness, increasing the bending strength and toughness, and ensuring the single-point anchoring force

Inactive Publication Date: 2019-10-25
江苏艾可陶节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But also there is following shortcoming in such product, influences its further popularization and use:
[0004] 1. According to the product standard of "Fiber Cement Board Part One: Asbestos-free Fiber Cement Board" (JC / T412.1-2018), the water absorption rate of cement fiber board is as high as 25~30%, and it is easy to deform after absorbing water, and has poor freeze-thaw resistance
Pulverization occurs after freezing and thawing, which affects the service life
[0005] 2. The fibers and cementitious materials in the cement fiberboard are fully stirred, and they are evenly arranged macroscopically. A large number of fibers are not arranged on the surface of the board in accordance with the direction of force, but inside the board, there is no strengthening effect, resulting in cement fiberboard. The bending strength is not high
Due to the limited thickness of cement fiberboard, only 8 mm thick; at the same time, the brittleness of cement fiberboard makes slotting very difficult, time-consuming and labor-intensive, and dust pollution is certain; it may also cause unqualified installation of metal fasteners, which in turn leads to metal fasteners. failure, causing a safety hazard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1: Prepare 40 grams of glass fiber mat, paint on one side, and have a decorative effect, as the outer glass fiber mat layer. First, lay the outer glass fiber mat layer down flat. Then a 3 mm thick cement-based slurry is placed on the outer glass fiber mat layer. The PE foam strip is arranged in the longitudinal direction, the thickness of the foam strip is 1.5 mm, the width is 25 mm, and it is usually arranged in the longitudinal direction. Then place a layer of 160 grams of glass fiber mesh cloth, and then arrange 3 mm of cement-based slurry, and spread 40 grams of glass fiber mat as the inner glass fiber mat layer, and smooth it so that the inner glass fiber mat layer is completely immersed in the slurry. . After the slurry is cured, it becomes a grooved cement board.

Embodiment 2

[0041] Example 2: Prepare 40 grams of glass fiber mat as the outer glass fiber mat layer. First lay the outer fiberglass mat layer flat. Then a 3 mm thick cement-based slurry is placed on the outer glass fiber mat layer. The PS foam strips are arranged in the transverse direction, the thickness of the foam strips is 1.5 mm, the width is 30 mm, and it is usually arranged in the transverse direction. Then place a layer of 160 grams of glass fiber mesh cloth, and then arrange 3 mm of cement-based slurry, and spread 40 grams of glass fiber mat as the inner glass fiber mat layer, and smooth it so that the inner glass fiber mat layer is completely immersed in the slurry. . After the slurry is cured, it becomes a grooved cement board.

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Abstract

The invention relates to a cement board. The cement board comprises an outer side glass fiber mat layer arranged on the outer side of the cement board, an inner side glass fiber mat layer arranged onthe inner side of the cement board, and a slurry layer arranged between the outer side glass fiber mat layer and the inner side glass fiber mat layer. According to the cement board, the smoothness ofdecorative boards can be guaranteed, grooving on site in construction mounting is avoided, and water absorption is greatly reduced.

Description

Technical field [0001] The invention relates to the field of building exterior walls, in particular to a cement board. Background technique [0002] Energy conservation and emission reduction is a common problem faced by the whole world, and building energy conservation is an important part of it. The external thermal insulation system of building exterior wall is an important means of building energy saving. There are many types of external thermal insulation systems, and thermal insulation decorative panels are also one of the commonly used forms in buildings. Various decorative boards, such as slate, hardened or painted metal boards, ceramic boards, etc., can be combined with thermal insulation materials to form an integrated thermal insulation and decorative board. Considering the economy, a large number of cement fiber boards or calcium silicate boards are used in the market to decorate one surface of the board, and the other board surface is compounded with an adhesive an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B13/14B32B17/02B32B3/08E04F13/08
CPCB32B13/14B32B3/08E04F13/0875E04F2290/04B32B2262/101B32B2307/546B32B2307/54B32B2307/726B32B2607/00
Inventor 花海东
Owner 江苏艾可陶节能科技有限公司
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