CN210597733U - Weather-resistant waterproof outer wall - Google Patents

Abstract

The utility model discloses a weather-proof waterproof outer wall, which relates to the technical field of building engineering and aims to solve the technical problem that in the process of plastering a wall body by constructors, the surface of the outer wall needs to be blown by wind and dried, so that the adsorbability of a coating layer is easily reduced due to time and weather, and the phenomenon of peeling and falling of the coating layer is generated; a primer layer is arranged on the surface of the outer wall body; one surface of the primer layer, which is far away from the outer wall body, is provided with a waterproof coating; the effect that the coating is not easy to fall off is achieved.

Description

Weather-resistant waterproof outer wall

Technical Field

The utility model relates to a building engineering technical field, more specifically say, it relates to a type waterproof outer wall of nai time.

Background

The outer wall, from the point of architecture, is called as the outer wall to enclose the building and form the indoor and outdoor boundary member, which has the functions of bearing certain load, shielding wind and rain, preventing noise, preventing fire and safety, etc.

The existing Chinese patent with the application number of CN201621179603.3 provides a waterproof and heat-insulating structure for an external wall, which comprises a mortar leveling layer, a water-based heat-insulating coating layer and a water-based waterproof coating layer, wherein the mortar leveling layer is laid on the outer wall of the wall, the water-based heat-insulating coating layer is laid on the outer surface of the mortar leveling layer, and the water-based waterproof coating layer is laid on the outer surface of the water-based heat-insulating coating layer.

However, in the process of plastering a wall by a constructor, the outer wall surface needs to be blown by wind and dried by sun, so that the adsorbability of the coating layer is reduced due to time and weather, and the phenomena of peeling and falling off of the coating layer are generated, and thus the improvement is needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a resistant type waterproof exterior wall of waiting, it has the difficult advantage that drops of coating.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a weather-resistant waterproof outer wall comprises an outer wall body, wherein a plurality of prefabricated protrusions are arranged on the outer wall body; a primer layer is arranged on the surface of the outer wall body; and a waterproof coating is arranged on one surface of the primer layer, which is far away from the outer wall body.

By adopting the technical scheme, the prefabricated protrusion can reduce the phenomena of paint falling, faults and the like caused by low adhesive force of the outer wall paint; the primer layer is made of water-based epoxy seal primer which mainly comprises epoxy groups and has lower surface tension and excellent adhesion; the epoxy group can react with alkali to form silicate, so that the migration of the salt and the alkali is effectively prevented, and the stability of the primer layer under the strong alkali condition is ensured; the waterproof coating is acrylic waterproof paint; the acrylic waterproof paint is a single-component water-emulsion waterproof paint prepared by taking pure acrylic polymer emulsion as a base material and adding other additives, and has good waterproof performance.

Further, a putty layer is arranged between the primer layer and the waterproof coating.

By adopting the technical scheme, the putty layer is formed by diluting the exterior wall putty powder, then coating the exterior wall putty powder on a wall and drying the exterior wall putty powder thoroughly; the exterior wall putty powder is prepared by finely processing inorganic cementing material serving as a base material, a binding material and other auxiliary agents, has the outstanding characteristic of high binding strength, and is used for filling and leveling walls; the diluted exterior wall putty powder is smeared at least three times to realize the leveling effect; when the primer layer is directly coated on the surface of the outer wall body, on one hand, the direct coating can influence the adhesive force of the primer layer due to low flatness of the wall surface, so that the primer layer falls off; on the other hand, as the outer wall main body is a cement surface and the cement is alkaline, hydration reaction is easy to generate after the primer layer is directly brushed, and alkali bloom is generated; leading to crater-like protrusions on the surface of the primer layer, and in severe cases, forming a layer of alkali frost on the surface of the primer layer, and finally damaging the primer layer.

Further, the putty layer is provided with a cement layer towards the waterproof coating.

By adopting the technical scheme, the cement layer is mainly composed of silica sol, and has a good bonding effect; after the water in the adhesive layer is evaporated, the adhesive strength between the fire-resistant heat-insulating layer and the primer layer can be strengthened; meanwhile, the environment-friendly effect is also achieved.

Further, the cement layer is provided with a fire-resistant heat-insulating layer for fire protection in the direction of the waterproof coating.

By adopting the technical scheme, the fireproof heat-insulating layer is made of the heat-insulating mortar, and the inorganic heat-insulating mortar material has the effects of fire prevention, flame retardance and environmental protection.

Further, a protective layer is arranged on one side, away from the fireproof heat-insulation coating, of the waterproof coating.

By adopting the technical scheme, the protective layer is arranged to protect the waterproof layer from being damaged; the surface dust of the protective layer can be self-cleaned by rainwater, and the protective layer has excellent hydrophobicity and good antifouling property.

Further, the surface of the prefabricated protrusion is provided with a circular arc inclined plane.

By adopting the technical scheme, the outer surface of the prefabricated bulge is smoother due to the arc inclined surface; on one hand, the coating is convenient to be coated on the surface of the outer wall body in the later period; on the other hand, the danger coefficient in the construction process can be reduced.

Furthermore, the periphery of the outer wall body is provided with fixing strips.

Through adopting above-mentioned technical scheme, consider the problem that the coating that is located the outer wall body end wall easily drops, the setting of fixed strip plays the effect that makes the coating and the external world of outer wall body end wall department keep apart, prolongs the life of coating.

Furthermore, the fixed strip is detachably connected with the outer wall body.

Through adopting above-mentioned technical scheme, when needs maintain the coating, can dismantle the fixed strip.

To sum up, the utility model discloses following beneficial effect has:

1. the mode of painting the putty layer before painting the primer layer is adopted, so that the surface of the outer wall body is leveled, the primer layer is more attached to the outer wall body, and the effect that the primer layer is not easy to fall off is realized;

2. the mode of arranging the arc inclined plane on the prefabricated protrusion is adopted, so that the protection effect is achieved.

Drawings

FIG. 1 is a schematic structural view of a weather-resistant waterproof outer wall according to an embodiment;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: 1. an exterior wall body; 11. prefabricating a bulge; 111. a circular arc inclined plane; 2. a water-resistant coating; 21. a primer layer; 22. a putty layer; 23. a cement layer; 24. a refractory thermal insulation layer; 25. a protective layer; 3. and (4) fixing the strip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a weather-proof waterproof outer wall, referring to fig. 1, comprises an outer wall body 1, wherein a plurality of prefabricated protrusions 11 are arranged on the outer wall body 1; the prefabricated protrusion 11 can reduce the occurrence of coating dropping, faults and the like caused when the adhesive force of the exterior wall coating is low.

Referring to fig. 1, the surface of the preformed protrusion 11 is provided with an arc inclined plane 111, so that the outer surface of the preformed protrusion 11 is smoother; on one hand, the coating is conveniently coated on the surface of the outer wall body 1 in the later period; on the other hand, the danger coefficient in the construction process can be reduced.

Referring to fig. 2, the surface of the exterior wall body 1 is coated with a putty layer 22, and one side of the putty layer 22 away from the exterior wall body 1 is coated with a primer layer 21; the putty layer 22 is formed by diluting external wall putty powder, then coating the diluted external wall putty powder on a wall and drying the external wall putty powder thoroughly; the exterior wall putty powder is prepared by finely processing inorganic cementing material serving as a base material, a binding material and other auxiliary agents, has the outstanding characteristic of high binding strength, and is used for filling and leveling walls; the diluted exterior wall putty powder is smeared at least three times to realize the leveling effect.

Referring to fig. 2, when the primer layer 21 is directly applied to the surface of the exterior wall body 1, on one hand, the direct application may affect the adhesion of the primer layer 21 due to low wall flatness, resulting in the primer layer 21 falling off; on the other hand, as the outer wall body 1 is a cement surface and the cement is alkaline, hydration reaction is easy to generate after the primer layer 21 is directly brushed, and alkali bloom is generated; leading to crater-like protrusions on the surface of the primer layer 21, and in severe cases, a layer of alkali frost may form on the surface of the primer layer 21, eventually damaging the primer layer 21.

Referring to fig. 2, the primer layer 21 employs a water-based epoxy seal primer, which is mainly composed of epoxy groups and has a low surface tension and excellent adhesion; the epoxy group can react with alkali to form silicate, effectively prevent the migration of salt and alkali, and provide guarantee for the stability of the primer layer 21 under the strong alkali condition.

Referring to fig. 2, a fire-resistant heat-insulating layer 24 is coated on one side of the primer layer 21 away from the putty layer 22, the fire-resistant heat-insulating layer 24 is made of heat-insulating mortar, and the inorganic heat-insulating mortar material has the effects of fire prevention, flame retardance and environmental protection.

Referring to fig. 2, a cement layer 23 is coated between the fire-resistant heat-insulating layer 24 and the primer layer 21, and the cement layer 23 is mainly composed of silica sol and has a good bonding effect; after the water in the adhesive layer 23 is evaporated, the bonding strength between the fire-resistant heat-insulating layer 24 and the primer layer 21 can be strengthened; meanwhile, the environment-friendly effect is also achieved.

Referring to fig. 2, one side of the fire-resistant heat-insulating layer 24 away from the direction of the adhesive layer 23 is coated with a waterproof coating 2, and the waterproof coating 2 is acrylic waterproof paint; the acrylic waterproof paint is a single-component water-emulsion waterproof paint prepared by taking pure acrylic polymer emulsion as a base material and adding other additives, and has good waterproof performance.

Referring to fig. 2, a protective layer 25 is coated on one surface of the waterproof coating 2 away from the direction of the fire-resistant heat-insulating layer 24, and the protective layer 25 is made of fluorocarbon paint; the fluorocarbon coating is a coating which takes fluororesin as a main film forming substance and has excellent corrosion resistance and weather resistance; the fluorocarbon coating has the advantages of self-cleaning of dust on the surface through rainwater, excellent hydrophobicity and good antifouling property.

Referring to fig. 1 and 2, the upper end of the outer wall body 1 is fixedly provided with a fixing strip 3 through bolts, and the fixing strip 3 is made of PVC material and has a waterproof effect; in consideration of the problem that the coating on the end wall of the outer wall body 1 is easy to fall off, the arrangement of the fixing strip 3 plays a role in isolating the coating on the end wall of the outer wall body 1 from the outside, and the service life of the coating is prolonged; the fixing strip 3 can be removed when maintenance of the coating is required.

The working principle is as follows:

when the outer wall body 1 is painted, at least three putty layers 22 are painted on the surface of the outer wall body 1, and then primer is painted on the putty layers 22; after the primer is brushed, the adhesive layer 23 is brushed, so that the particles on the surface of the fire-resistant heat-insulating layer 24 can be better adhered to the outer wall body 1; then, the fireproof heat-insulating layer 24, the waterproof layer and the protective layer 25 are painted, and the waterproof performance of the outer wall is achieved.

When the coating is reinforced, the outer wall body 1 with the prefabricated protrusions 11 is selected, and the prefabricated protrusions 11 can prevent the layers of the outer wall body 1 from falling off easily; the fixing strip 3 is fixed at the upper end of the outer wall body 1 through bolts, so that the coating layer at the upper end of the outer wall body 1 is not easy to drop.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a waterproof outer wall of resistant type of waiting, includes outer wall body (1), its characterized in that: the outer wall body (1) is provided with a plurality of prefabricated bulges (11); a primer layer (21) is arranged on the surface of the outer wall body (1); and a waterproof coating (2) is arranged on one surface of the primer layer (21) far away from the outer wall body.

2. The weather-resistant waterproof exterior wall according to claim 1, wherein: a putty layer (22) is arranged between the primer layer (21) and the outer wall body (1).

3. The weather-resistant waterproof exterior wall according to claim 2, wherein: the primer layer (21) is provided with a cement layer (23) in the direction of the waterproof coating (2).

4. The weather-resistant waterproof exterior wall according to claim 3, wherein: the cement layer (23) is provided with a fireproof heat-insulating layer (24) for fire protection in the direction of the waterproof coating (2).

5. The weatherable, waterproof exterior wall of claim 4, wherein: and a protective layer (25) is arranged on one surface of the waterproof coating (2) far away from the fireproof heat-insulating coating.

6. The weather-resistant waterproof exterior wall according to claim 1, wherein: the surface of the prefabricated bulge (11) is provided with an arc inclined plane (111).

7. The weather-resistant waterproof exterior wall according to claim 1, wherein: the top of the outer wall body (1) is provided with a fixing strip (3).

8. The weatherable, waterproof exterior wall of claim 7, wherein: the fixing strip (3) is detachably connected with the outer wall body (1).

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