CN203905187U - Fiber reinforced cement lightweight insulation board - Google Patents

Abstract

The utility model discloses a fiber reinforced cement lightweight insulation board which comprises composite foamed cement plate, alkali-resisting glass fiber mesh cloth and polymer cement mortar reinforcing layers, wherein the alkali-resisting glass fiber mesh cloth are stuck on the upper surface and the lower surface of the composite foamed cement plate; the polymer cement mortar reinforcing layers are brushed on the upper surface, the lower surface and four side faces of the composite foamed cement plate in a mode of spraying, dipping mortar or scraping mortar. The fiber reinforced cement lightweight insulation board disclosed by the utility model has the advantages of low water absorption, excellent mechanical property, low heat conductivity coefficient, good integrity, no cracking, A-grade fireproofing, the same long service life with a building and the like.

Description

Fiber reinforced cement lightweight insulation board

technical field

The utility model relates to the field of building thermal insulation materials, in particular to a fiber-reinforced cement lightweight thermal insulation board. the

Background technique

Composite foamed cement board is currently one of the few undisputed Class A fireproof and thermal insulation materials with complete certificates on the market. board (general service life 20-25 years) and other advantages. However, due to its low market threshold, mostly small enterprises, and low technical level, although it can produce foam when buying equipment, it can produce foam, but its internal quality is poor, crisp (low strength), brittle, powder falling, cracking, high water absorption, and density. Large, poor insulation effect. Some products have poor durability, the more they are placed, the more crisp they become, and the phenomenon of powdering and falling off on the upper wall has seriously damaged the overall image of the composite foamed cement board industry. the

Contents of the invention

The technical problem mainly solved by the utility model is to provide a fiber-reinforced cement lightweight insulation board with low water absorption, excellent mechanical properties, low thermal conductivity, good integrity, no cracking, the same lifespan as buildings, and A-level fire protection. the

In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a fiber-reinforced cement lightweight insulation board, including a composite foamed cement board layer, an alkali-resistant glass fiber mesh layer and a polymer cement mortar reinforcement layer, The polymer cement mortar reinforcement layer is painted on the upper and lower surfaces and four sides of the composite foamed cement board layer by spraying, soaking or scraping, and the alkali-resistant glass fiber mesh layer is arranged on the composite foamed cement board layer and Polymer cement mortar reinforcement between layers. the

In a preferred embodiment of the present invention, the dry density of the composite foamed cement board is less than 250 kg/m ³ .

In a preferred embodiment of the present invention, the thickness of the polymer cement mortar layer should be 0.5-5mm. the

The beneficial effects of the utility model are: the utility model pastes alkali-resistant glass fiber mesh cloth on the upper and lower surfaces of the composite foam cement board, and the reinforced layer of polymer cement mortar is painted on the composite foam by spraying, dipping or scraping. The upper and lower surfaces of the cement board and its four sides overcome the shortcomings of the composite foamed cement board, such as high brittleness, easy cracking, high water absorption, and serious powder loss. The composite thermal insulation board has low water absorption (water absorption is less than 5%), Excellent mechanical properties, low thermal conductivity, good integrity, no cracking, A-class fire protection, and the same lifespan as buildings, etc., can be used in external wall insulation systems, fire isolation belts, and thermal insulation decoration integration. High-grade fireproof insulation materials can be widely used in external wall insulation systems. the

Description of drawings

Fig. 1 is the structural representation of a preferred embodiment of the utility model fiber reinforced cement lightweight insulation board;

The marks of the components in the drawings are as follows: 1. Composite foamed cement slab layer, 2. Alkali-resistant glass fiber mesh layer, 3. Polymer cement mortar reinforced layer.

Detailed ways

The preferred embodiments of the utility model are described in detail below, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, so that the protection scope of the utility model can be defined more clearly. the

Please refer to Figure 1, a fiber-reinforced cement lightweight insulation board, including a composite foamed cement board layer 1, an alkali-resistant glass fiber mesh layer 2 and a polymer cement mortar reinforcement layer 3, and the polymer cement mortar reinforcement layer 3 is sprayed , dipping or squeegeeing on the upper and lower surfaces of the composite foamed cement slab 1 and its four sides, and the alkali-resistant glass fiber mesh layer 2 is set on the composite foamed cement slab 1 and reinforced by polymer cement mortar Between layers 3. the

Wherein, the dry density of the composite foamed cement board is less than 250 kg/m ³ .

Wherein, the thickness of the polymer cement mortar layer should be 0.5-5mm. the

The preparation method of fiber reinforced cement lightweight insulation board, its preparation steps are as follows:

(1) Preparation of composite foamed cement board;

(2) Preparation of adhesive: mix cement and redispersible latex powder according to the weight ratio for 3-6 minutes, mix well, then add water and stir for 2-4 minutes;

(3) The upper and lower surfaces of the composite foamed cement board are pasted with alkali-resistant glass fiber mesh with adhesive;

(4) Prepare polymer cement mortar: mix cement and redispersible latex powder according to the weight ratio for 3-6 minutes, mix well, then add water and stir for 2-4 minutes;

(5) Brush the polymer cement mortar on the upper and lower surfaces and four sides of the composite foamed cement board by spraying, soaking or scraping, and leave it for 1-3 days to obtain a fiber-reinforced cement lightweight insulation board .

The utility model will provide a fiber-reinforced cement lightweight insulation board, including composite foamed cement board, alkali-resistant glass fiber mesh and polymer cement mortar reinforcement layer. The polymer cement mortar reinforcement layer is sprayed, soaked or scraped. Brushing on the upper and lower surfaces of the composite foamed cement board and its four sides in the same way overcomes the shortcomings of the composite foamed cement board such as high brittleness, easy cracking, high water absorption, and serious powder loss. The composite thermal insulation board has low water absorption (water absorption less than 5%), excellent mechanical properties, low thermal conductivity, good integrity, no cracking, A-class fire protection, and the same lifespan as buildings, etc., can be applied to external wall insulation systems, fire isolation belts, insulation decoration In the integration, as a class A fireproof insulation material, it can be widely used in external wall insulation systems. the

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process transformation made by the specification of the utility model is directly or indirectly used in other related technical fields. , are all included in the scope of patent protection of the utility model in the same way. the

Claims (3)

1. a fibre reinforced cement light thermal insulation board, it is characterized in that, comprise composite foaming cement flaggy, alkali-resisting glass fiber scrim layer and polymer cement mortar enhancement layer, polymer cement mortar enhancement layer is by spraying, soaking paste or scrape the mode brushing of slurry in upper and lower surface and four sides thereof of composite foaming cement flaggy, and alkali-resisting glass fiber scrim layer is located between composite foaming cement flaggy and polymer cement mortar enhancement layer.

2. fibre reinforced cement light thermal insulation board according to claim 1, is characterized in that, the dry density of described composite foaming cement plate is less than 250 kg/m ³.

3. fibre reinforced cement light thermal insulation board according to claim 1, is characterized in that, the thickness of described polymer cement mortar layer should be 0.5-5mm.