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A kind of coating for garage roof cavity inner film

A roof and cavity technology, applied in the field of construction materials, can solve the problems of increased production cost, weak bonding, easy cracking, etc., and achieve the effects of improving adhesion strength, superior performance, and improving flexibility

Inactive Publication Date: 2017-11-07
SHANDONG LIAOCHENG CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the low density and soft material of expanded polystyrene board, it is easy to be damaged by collision during transportation, so it is also necessary to use sealing coating materials for sealing
The price of existing smearing or spraying materials on the market is too high, resulting in a large increase in production costs, and at the same time there are disadvantages such as weak bonding, easy cracking, and falling off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Proportion (weight ratio): silicone modified styrene acrylic emulsion 12, cement 40, sand 40, heavy calcium 6, redispersible latex powder 0.8, hydroxypropyl methyl cellulose ether 0.2, anti-cracking fiber 0.3, reduction Water agent 0.2, expansion agent 0.3, powder shrinkage reducing agent 0.2, water 85.

[0022] Preparation and use method:

[0023] (1) Use a dry powder mixer to mix the above materials (except water), and stir evenly;

[0024] (2) Send it into the mortar mixer, add water and stir evenly to reach the state and concentration suitable for spraying;

[0025] (3) Send it to the spraying machine, and spray the six surfaces of the inner membrane of the cavity of the garage roof to make it reach a thickness of 1mm;

[0026] (4) After curing for 3 days in the curing room, inspect and put into storage.

[0027] The performance indicators of the obtained product are as follows: and polystyrene board (density 20kg / m 3 ) Tensile bonding strength is 0.28MPa; with polystyrene bo...

Embodiment 2

[0029] Raw material ratio (parts by weight): organic silicon modified styrene-acrylic emulsion 10, cement 40, sand 40, heavy calcium 8, redispersible latex powder 0.8, hydroxypropyl methyl cellulose ether 0.2, anti-cracking fiber 0.2, Water reducing agent 0.3, expanding agent 0.3, powder shrinking agent 0.2, water 75.

[0030] Preparation and use methods: the same as in Example 1.

[0031] The performance indicators of the obtained product are as follows: and polystyrene board (density 20kg / m 3 ) Tensile bonding strength is 0.28MPa; with polystyrene board (density 20kg / m 3 ) Water resistance tensile bonding strength is 0.22MPa; with polystyrene board (density 20kg / m 3 ) The tensile bonding strength after freeze-thaw cycles is 0.18MPa; the water absorption in 24 hours is 300g / m 2 ; Compression-fold ratio is 2.1; Fire resistance: not less than B1 level, in line with architectural design requirements.

Embodiment 3

[0033] Raw material ratio (parts by weight): silicone modified styrene-acrylic emulsion 13, cement 40, sand 40, heavy calcium 5, redispersible latex powder 1.0, hydroxypropyl methyl cellulose ether 0.2, anti-cracking fiber 0.2, Water reducing agent 0.2, expanding agent 0.2, powder shrinking agent 0.2, water 85.

[0034] Preparation and use methods: the same as in Example 1.

[0035] The performance indicators of the obtained product are as follows: and polystyrene board (density 20kg / m 3 ) Tensile bonding strength is 0.25MPa; with polystyrene board (density 20kg / m 3 ) Water resistance tensile bonding strength is 0.20MPa; with polystyrene board (density 20kg / m 3 ) The tensile bonding strength after freeze-thaw cycles is 0.16MPa; the water absorption in 24 hours is 300g / m 2 ; Compression-fold ratio is 1.8; Fire resistance: not lower than B1 level, in line with architectural design requirements.

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Abstract

The invention discloses a coating for the cavity inner film of the roof of a garage. It is made of the following raw materials: silicone modified styrene-acrylic emulsion, cement, sand, heavy calcium, redispersible latex powder, hydroxypropyl methylcellulose ether, anti-cracking fiber, water reducing agent, swelling agent, powdered shrink reducer and water. The invention forms a flexible cement mortar protective layer with high adhesion and strength after the above-mentioned raw materials are used to wrap the cavity inner membrane of the roof of the garage, so as to solve the protection problem during transportation and the engineering fire prevention problem. The product of the invention has superior performance, strong adhesive force, durable crack resistance and convenient production.

Description

Technical field [0001] The invention relates to a paint for the inner membrane of a cavity on a garage roof, belonging to the technical field of construction materials. Background technique [0002] At present, the filling material of the concrete structure of the garage roof mostly adopts the cavity inner membrane. For example, the utility model patent with the patent number 201210536568.6 discloses a garage roof structure and a construction method and a concrete structure cavity inner membrane. The garage roof adopts a concrete structure cavity inner membrane. The inner membrane of the cavity of the garage roof is a construction material, which is a block hexahedron cut from expanded polystyrene board. As the requirements for fire protection in engineering construction increase, this product does not meet the fire resistance requirements without sealing measures. At the same time, due to the low density and soft material of expanded polystyrene board, it is easy to collide an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00
Inventor 么传杰华雷广张云强李振
Owner SHANDONG LIAOCHENG CONSTR
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