Weather-resistant outer wall surface structure

Abstract

The weather-resistant outer wall surface structure comprises an autoclaved sand aerated concrete block layer, and the outer side face of the autoclaved sand aerated concrete block layer is sequentially provided with a first cement mortar layer, a second cement mortar layer, a foaming ceramic heat preservation layer and an anti-crack mortar composite alkali-resistant glass fiber gridding cloth layer. The autoclaved sand aerated concrete block layer and the first cement mortar layer are bonded through an interface agent, the second cement mortar layer and the foaming ceramic heat preservation layer are bonded through an adhesive, and the outer side surface of the anti-crack mortar composite alkali-resisting glass fiber gridding cloth layer is sprayed with anti-radiation paint. According to the weather-resistant outer wall surface structure, the outer wall is prevented from cracking under the normal condition, and meanwhile the requirement for alkali resistance and cracking resistance of the outer wall under the high-humidity and high-temperature conditions of coastal cities can be effectively met.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to a weather-resistant exterior wall surface structure. Background Art

[0002] For coastal areas, due to relatively high humidity, relatively high temperature, and relatively high sunshine intensity, the problem of exterior wall cracking is relatively serious. In addition, when the building is close to the sea, special attention needs to be paid to the impact of marine corrosion. The salt content in the environment will trigger chemical and physical reactions, resulting in material decomposition or aging and damaging the durability of the building infrastructure.

[0003] Therefore, based on the analysis of the construction process of the causes of the bulging and cracking problems in the exterior wall paint finish layer, the existing technical solutions have designed corresponding prevention and control measures, which have alleviated the exterior wall cracking problem to a certain extent. However, it lacks consideration of objective environmental factors, so there is still room for further improvement. Summary of the Invention

[0004] To overcome the deficiencies of the prior art, the utility model provides a weather-resistant exterior wall surface structure, which can effectively meet the requirements of alkali resistance and anti-cracking of the exterior wall under high humidity and high temperature conditions in coastal cities while ensuring the anti-cracking of the exterior wall under normal conditions.

[0005] To achieve the above object, the weather-resistant exterior wall surface structure of the utility model includes an autoclaved sand aerated concrete block layer. The outer side of the autoclaved sand aerated concrete block layer is successively provided with a first cement mortar layer, a second cement mortar layer, a foamed ceramic insulation layer, and an anti-cracking mortar composite alkali-resistant fiberglass mesh layer. The autoclaved sand aerated concrete block layer and the first cement mortar layer are bonded by an interface agent, the second cement mortar layer and the foamed ceramic insulation layer are bonded by an adhesive, and an anti-radiation coating is sprayed on the outer surface of the anti-cracking mortar composite alkali-resistant fiberglass mesh layer.

[0006] Further, the thickness of the autoclaved sand aerated concrete block layer is 200mm, the thickness of the first cement mortar layer is 12mm, the thickness of the second cement mortar layer is 8mm, the thickness of the foamed ceramic insulation layer is 40mm, and the thickness of the anti-cracking mortar composite alkali-resistant fiberglass mesh layer is 5mm.

[0007] Further, the foamed ceramic insulation layer includes a plurality of foamed ceramic insulation boards with side lengths of 600mm * 600mm. The upper and lower rows of foamed ceramic insulation boards are staggered, and the stagger between the upper and lower rows of foamed ceramic insulation boards is 300mm.

[0008] Further, the foamed ceramic insulation board at the door and window openings on the wall surface is cut into an integral L shape.

[0009] Further, a plurality of adhesive strips extending in the horizontal direction are provided on the back surface of the foamed ceramic insulation board. The length of the adhesive strip is 500 mm, and there are 50 mm intervals at both ends of the adhesive strip and the two sides of the foamed ceramic insulation board respectively. The width of the adhesive strip is 10 mm, and the interval between adjacent adhesive strips is 20 mm.

[0010] Further, the foamed ceramic insulation board located at the wall corner is cut into a vertical state flush with the wall.

[0011] Further, anchor nails are provided on the second cement mortar layer. The anchor nails are divided into several groups with two rows in each group. The spacing between the two rows of anchor nails is equal. The spacing within a row of one row of anchor nails is equal to the spacing between rows, and the spacing within a row of the other row of anchor nails is twice the spacing between rows.

[0012] Further, a plurality of dividing joints are formed on the outer surface of the crack-resistant mortar composite alkali-resistant fiberglass mesh cloth layer through tapes.

[0013] While ensuring the normal anti-cracking of the exterior wall, the weather-resistant exterior wall surface structure of the present utility model can also effectively meet the requirements of alkali-resistant anti-cracking of the exterior wall under the conditions of high humidity and high temperature in coastal cities. Description of the Drawings

[0014] The present utility model will be further described and elaborated below with reference to the drawings.

[0015] Figure 1 is a cross-sectional view of the weather-resistant exterior wall surface structure of the preferred embodiment of the present utility model.

[0016] Figure 2 is a schematic diagram for showing the setting manner of the foamed ceramic insulation board at the wall corner.

[0017] Figure 3 is a schematic diagram for showing the setting manner of the foamed ceramic insulation board at the door and window openings.

[0018] Figure 4 is a schematic diagram of the adhesive strip on the back surface of the foamed ceramic insulation board.

[0019] Figure 5 is a schematic diagram for showing the anchor nails.

[0020] Figure 6 is a schematic diagram for showing the dividing joints.

[0021] Reference numerals: 1, autoclaved sand-lime aerated concrete block layer; 2, first cement mortar layer; 3, second cement mortar layer; 31, anchor nails; 4, foamed ceramic insulation layer; 41, foamed ceramic insulation board; 42, adhesive strip; 5, crack-resistant mortar composite alkali-resistant fiberglass mesh cloth layer; 6, dividing joint. Detailed Embodiment

[0022] The technical solution of the present utility model will be described more clearly and completely below in conjunction with the accompanying drawings and through the description of the preferred embodiments of the present utility model.

[0023] As Figure 1 shown, the weather-resistant exterior wall surface structure of the preferred embodiment of the present utility model includes an autoclaved sand aerated concrete block layer. A first cement mortar layer, a second cement mortar layer, a foamed ceramic insulation layer, and an anti-cracking mortar composite alkali-resistant fiberglass mesh layer are sequentially provided on the outer side surface of the autoclaved sand aerated concrete block layer. The autoclaved sand aerated concrete block layer and the first cement mortar layer are bonded through an interface agent. The second cement mortar layer and the foamed ceramic insulation layer are bonded through an adhesive. An anti-radiation coating is sprayed on the outer surface of the anti-cracking mortar composite alkali-resistant fiberglass mesh layer.

[0024] The first cement mortar layer is made of cement mortar added with 3% waterproofing agent, and the second cement mortar layer is made of cement mortar added with 2.5% waterproofing agent. The interface agent is a wall strengthening agent, which is used to enhance the bonding effect between the base surface of the autoclaved sand aerated concrete block layer and the first cement mortar layer. The anti-radiation coating is real stone paint, a synthetic resin emulsion sand wall coating.

[0025] The thickness of the autoclaved sand aerated concrete block layer is 200 mm, the thickness of the first cement mortar layer is 12 mm, the thickness of the second cement mortar layer is 8 mm, the thickness of the foamed ceramic insulation layer is 40 mm, and the thickness of the anti-cracking mortar composite alkali-resistant fiberglass mesh layer is 5 mm.

[0026] As Figure 2 and Figure 3 shown, the foamed ceramic insulation layer includes a number of foamed ceramic insulation boards with a side length of 600 mm * 600 mm. The upper and lower rows of foamed ceramic insulation boards are staggered. The stagger joint between the upper and lower rows of foamed ceramic insulation boards is 300 mm. The foamed ceramic insulation board is a high-porosity closed-cell ceramic material made of clay tailings, ceramic fragments, river silt, etc. as the main raw materials and baked at high temperature by an advanced production process and foaming technology. Starting from the first floor, a horizontal line is drawn 600 mm above the plinth ground. The foamed ceramic insulation boards are horizontally laid transversely from bottom to top along the horizontal direction. The foamed ceramic insulation boards between the upper and lower rows should be staggered by 1 / 2 of the board length. The bonding area of the foamed ceramic insulation board should not be less than 60%, and the thickness of the bonding layer should not be less than 3 mm.

[0027] As Figure 2 shown, the foamed ceramic insulation boards at the wall corners are cut into a vertical state flush with the wall. First, arrange the dimensions, cut the foamed ceramic insulation boards, and make them vertically and staggeredly connected.

[0028] As Figure 3As shown, the foamed ceramic thermal insulation board at the door and window openings on the wall surface is cut into an integral L shape. The foamed ceramic thermal insulation boards at the four corners should be cut into an "L" shape from integral foamed ceramic thermal insulation boards for paving, and splicing is not allowed.

[0029] As Figure 4 shown, several adhesive strips extending in the horizontal direction are provided on the back of the foamed ceramic thermal insulation board. The length of the adhesive strips is 500 mm, there is a 50 mm interval between the two ends of the adhesive strips and the two sides of the foamed ceramic thermal insulation board respectively, the width of the adhesive strips is 10 mm, and the interval between adjacent adhesive strips is 20 mm.

[0030] As Figure 5 shown, anchor bolts are provided on the second cement mortar layer. The anchor bolts are divided into several groups with two rows in each group. The spacing between the two rows of anchor bolts is equal. The spacing within a row of one row of anchor bolts is equal to the spacing between rows, and the spacing within a row of the other row of anchor bolts is twice the spacing between rows. When the building height is less than 24 meters, the number of anchors per square meter should not be less than 5. When the building height is 24 - 50 meters, the number of anchors per square meter should not be less than 7. When the building height is greater than 50 meters, the number of anchors per square meter should not be less than 9.

[0031] As Figure 6 shown, several dividing joints are formed on the outer surface of the crack-resistant mortar composite alkali-resistant fiberglass mesh cloth layer through tapes. A fine brush is used to paint the color of the dividing joints. The tapes are pasted along the snapped line (and the painted dividing color). The anti-radiation coating is sprayed in a single-set area. The tapes are torn off before the surface is dry to leave the dividing lines. After the upper layer coating is dry well, the coating construction of the finishing layer is carried out.

[0032] While ensuring the normal anti-cracking of the exterior wall, the weather-resistant exterior wall surface structure of the present utility model can also effectively meet the requirements of alkali resistance and anti-cracking of the exterior wall under the conditions of high humidity and high temperature in coastal cities.

[0033] The above specific embodiments only describe the preferred embodiments of the present utility model, rather than limiting the protection scope of the present utility model. Without departing from the design concept and spirit scope of the present utility model, various deformations, substitutions and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model according to the text description and drawings provided by the present utility model shall all fall within the protection scope of the present utility model. The protection scope of the present utility model is determined by the claims.

Claims

1. A weather-resistant exterior wall surface structure, characterized in that, It includes an autoclaved sand aerated concrete block layer. A first cement mortar layer, a second cement mortar layer, a foamed ceramic insulation layer, and an anti-cracking mortar composite alkali-resistant fiberglass mesh layer are successively provided on the outer side surface of the autoclaved sand aerated concrete block layer. The autoclaved sand aerated concrete block layer and the first cement mortar layer are bonded by an interface agent. The second cement mortar layer and the foamed ceramic insulation layer are bonded by an adhesive. An anti-radiation coating is sprayed on the outer surface of the anti-cracking mortar composite alkali-resistant fiberglass mesh layer.

2. The weather-resistant exterior wall surface structure according to claim 1, characterized in that, The thickness of the autoclaved sand aerated concrete block layer is 200 mm, the thickness of the first cement mortar layer is 12 mm, the thickness of the second cement mortar layer is 8 mm, the thickness of the foamed ceramic insulation layer is 40 mm, and the thickness of the anti-cracking mortar composite alkali-resistant fiberglass mesh layer is 5 mm.

3. The weather-resistant exterior wall surface structure according to claim 2, wherein The foamed ceramic insulation layer includes a number of foamed ceramic insulation boards with side lengths of 600 mm * 600 mm. The upper and lower rows of the foamed ceramic insulation boards are staggeredly arranged, and the stagger between the upper and lower rows of the foamed ceramic insulation boards is 300 mm.

4. The weather-resistant exterior wall surface structure according to claim 3, characterized in that, The foamed ceramic insulation board located at the door and window openings on the wall surface is cut into an L shape as a whole.

5. The weather-resistant exterior wall surface structure according to claim 4, characterized in that, A number of adhesive strips extending in the horizontal direction are provided on the back of the foamed ceramic insulation board. The length of the adhesive strip is 500 mm. There are 50 mm intervals left between the two ends of the adhesive strip and the two sides of the foamed ceramic insulation board respectively. The width of the adhesive strip is 10 mm, and the interval between adjacent adhesive strips is 20 mm.

6. The weather-resistant exterior wall surface structure according to claim 5, characterized in that, The foamed ceramic insulation board located at the corner of the wall is cut to a vertical state flush with the wall.

7. The weather-resistant exterior wall surface structure according to claim 6, characterized in that, Anchoring nails are provided on the second cement mortar layer. The anchoring nails are divided into several groups with two rows in each group. The spacing between the two rows of the anchoring nails is equal. The in-row spacing of one row of the anchoring nails is equal to the row-to-row spacing, and the in-row spacing of the other row of the anchoring nails is twice the row-to-row spacing.

8. The weather-resistant exterior wall surface structure according to claim 7, characterized in that, A number of separation joints are formed on the outer surface of the anti-cracking mortar composite alkali-resistant fiberglass mesh layer through tapes.

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