A kind of antique red brick facing structure and its construction technology

Abstract

A structure for imitating an old red brick surface and a construction process thereof, comprising a leveling layer from inside to outside, a first putty layer, a second putty layer, an alkali-resistant primer layer, a first real stone paint surface layer, a second real stone paint surface layer and a finishing paint layer. In the construction process of the present invention, the leveling layer adopts horizontal mortar; the putty layer is pressed by an iron trowel; black sand is added to the real stone paint surface layer to simulate color, and it is constructed by manual scraping, and after scraping, a small scraping board is used to rub and carve simulated textures; 5%-10% of yellow-brown finishing paint is added to the finishing paint layer. Compared with soft stone veneer, the present invention saves 50% of construction cycle and 25% of comprehensive cost. The authenticity of ordinary real stone paint imitating old brick walls is 50%, while the authenticity of the present invention can reach 95%, and the real effect is greatly improved, which can better reflect the historical and cultural atmosphere.

Description

Technical Field

[0001] The invention relates to the field of building decoration, in particular to an antique red brick facing structure and a construction process thereof. Background Art

[0002] Among the existing old residential buildings in my country, a large number of them are red brick (sintered clay brick) structures. After years of wind and rain, the red brick exterior walls will be damaged to varying degrees, and the color will also become dark, which is the focus of the renovation of old residential areas. In the existing renovation of old residential areas in my country, the exterior finishing method of real stone paint or texture paint or the method of soft stone veneer is often used for renovation. For example, CN 211622365U discloses a layer structure of an exterior wall texture coating, including a base layer, a putty layer, a relief layer, a texture paint layer, a filling layer, and a protective layer arranged from the inside to the outside; the texture is enhanced by the concave pattern of the relief layer, so that the three-dimensional sense of the wall is stronger, and the texture of the texture can be further enhanced by the texture paint layer, and the overall texture is better.

[0003] The method of using real stone paint or textured paint for exterior finishing cannot restore the sintered clay brick exterior wall of the old community well, and cannot well preserve the historical style of the building. The method of using soft stone veneer has a long construction period and high cost, which is not suitable for the renovation projects of old communities with tight construction period and tight cost. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide an antique red brick facing structure which can retain the historical features of the building.

[0005] The technical problem to be further solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a construction process for an antique red brick facing structure with a short construction period.

[0006] The technical solution adopted by the present invention to solve its technical problem is: an antique red brick facing structure, including a leveling layer from inside to outside, a first putty layer, a second putty layer, an alkali-resistant primer layer, a first real stone paint surface layer, a second real stone paint surface layer and a finishing paint layer.

[0007] Furthermore, the leveling layer adopts horizontal mortar; the putty layer is polished by an iron trowel; black sand is added to the real stone paint surface layer to simulate color, and it is constructed by manual scraping, and then a small scraping board is used to rub and carve simulated texture after scraping; a yellow-brown topcoat with a volume fraction of 5% to 10% is added to the topcoat layer.

[0008] The technical solution adopted by the present invention to further solve the technical problem is: a construction process of an antique red brick facing structure, comprising the following steps:

[0009] S1. Repair the original wall. The hollows should be chiseled out first, and the loose and detached parts on the surface should be cleaned first to ensure that the base surface is flat and clean, and then level it with 1:2.5 cement mortar.

[0010] S2. Apply the first coat of leveling waterproof putty. The thickness depends on the unevenness of the wall surface. Generally, it is 1.5mm to 2.5mm.

[0011] S3. Apply the second coat of putty with a thickness of 2mm and use a 240 iron trowel to smooth it.

[0012] S4. When spraying alkali-resistant primer, apply it evenly and cover the entire surface.

[0013] S5. Paste the dividing strips. Before pasting, the red brick pattern should be designed, and the width of the masking tape should be selected according to the size of the joints. Then, draw the ink lines of the dividing seams on the wall, cover the area within the dividing lines with paper tape, and draw a straight line on the same wall.

[0014] S6. Spray the first layer of real stone topcoat with a special spray gun. Keep the spray gun nozzle vertical to the spraying surface. The spraying distance should be about 30 to 40 cm. Spraying should be completed in one go. Start spraying from the inner corners or lines. The total thickness of the real stone paint after completion should be 2mm to 2.5mm. The floating point should be uniform and the color should be consistent.

[0015] S7. Manually scrape and apply the second layer of real stone topcoat. Since it is necessary to simulate real sintered red bricks, and real sintered red bricks contain impurity particles, there will be marks of brick overlap during sintering, and the chromaticity reflected by different sintering temperatures is also different, so it is important to consider the ingredients of real paint. This technology achieves simulated color by adding black sand elements. Specific operation points: add 15% to 20% of black sand by volume to the real stone paint, and the coarseness of the black sand is 200 to 400 meshes of different grades of mixed sand. During construction, manual scraping must be used. Mechanical spraying is too uniform and unrealistic.

[0016] S8. Rub and carve simulated texture. Since red bricks are sintered clay, the surface has a sandy texture and fine stripes. Therefore, 20 minutes after the second layer of real stone topcoat is manually scraped and applied, it is manually processed with a sanding board. Use a small sanding board to rub and carve out appropriate patterns, and then press it with a large board to deal with sharp barbs to achieve a real texture and look more natural.

[0017] S9. Remove the dividing strips. After the building paint is dry, tear off the dividing strips. If there is any local damage, it should be repaired in time.

[0018] S10. Spray the topcoat (add color paint for aging treatment). After sanding, the real effect is basically achieved, but the surface is easily stained with dust. In order to avoid cleaning and maintenance in the later stage and increase the service life, the topcoat should be applied by roller coating after the above steps are completed. The topcoat should be milky white, and 5% to 10% of yellow-brown topcoat by volume should be added (the proportion of color paint added to the topcoat should be strictly controlled. If it is too large, the glossiness will not meet the requirements and the dark sub-color effect will be accelerated after natural aging) to enhance the antique and aging effect.

[0019] Compared with soft stone veneer, the present invention saves 50% of construction period (the present invention can be completed in 1 day from base treatment to completion, while soft stone veneer can be completed in 2 days from base treatment to completion), saves 25% of comprehensive cost, the realism of ordinary real stone paint imitating old brick walls is 50%, while the realism of the present invention can reach 95%, the real effect is greatly improved, and it can better reflect the historical and cultural atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the antique red brick facing structure in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 As shown, this embodiment includes, from inside to outside, a leveling layer 1, a first putty layer 2, a second putty layer 3, an alkali-resistant primer 4, a first real stone paint surface layer 5, a second real stone paint surface layer 6, and a finishing paint layer 7.

[0023] The leveling layer 1 adopts cement mortar; the putty layer 3 should be polished with an iron trowel; the real stone paint surface layer 6 should be added with black sand elements to simulate color, and this layer is constructed by manual scraping, and after scraping, a small scraping board is used to rub and carve simulated texture; the finishing paint layer 7 should add 5% to 10% of yellow-brown finishing paint.

[0024] This embodiment also discloses an antique red brick facing structure and a construction process thereof, comprising the following steps:

[0025] S1. Repair the original wall. For hollows, they should be chiseled out first, and loose and detached parts on the surface should be cleaned first to ensure that the base surface is flat and clean, and then level it with 1:2.5 cement mortar.

[0026] S2. Apply the first coat of leveling waterproof putty. The thickness depends on the unevenness of the wall surface and is generally 2mm.

[0027] S3. Apply the second coat of putty with a thickness of 2mm and use a 240 iron trowel to smooth it.

[0028] S4. When spraying alkali-resistant primer, apply it evenly and cover the entire surface.

[0029] S5. Paste the dividing strips (leveling water - marking lines - stickers). Before pasting, the red brick pattern should be designed, and the width of the masking tape should be selected according to the size of the joints. Then, mark the dividing seam ink lines on the wall, cover the area within the dividing lines with paper tape, and draw a straight line on the same wall.

[0030] S6. Spray the first layer of real stone topcoat with a special spray gun. Keep the nozzle of the spray gun vertical to the spraying surface, spray at a distance of about 30 to 40 cm, and keep the spray gun running at a certain speed. Spraying should be completed in one go, starting from the inner corners or lines. The total thickness of the real stone paint after completion is preferably 2mm, and the floating point should be uniform and the color should be consistent.

[0031] S7. Manually scrape and apply the second layer of real stone topcoat. Since it is necessary to simulate real sintered red bricks, and real sintered red bricks contain impurity particles, there will be marks of bricks stacking during sintering, and the chromaticity reflected by different sintering temperatures is also different, so it is important to consider the ingredients of real paint. This technology achieves simulated color by adding black sand elements. Specific operation points: add 15% to 20% of black sand to the real stone paint. The coarseness of black sand is 200 to 400 meshes of mixed sand of different grades. During construction, manual scraping method must be used. Mechanical spraying is too uniform and unrealistic.

[0032] S8. Sanding effect (using a small sanding board to rub and carve simulated texture). Since red bricks are sintered clay, the surface has a sandy texture and fine stripes. Therefore, 20 minutes after the second layer of real stone topcoat is manually scraped and applied, it must be manually processed with a sanding board. Use a small sanding board to rub and carve out appropriate patterns, and then press it with a large board to remove sharp barbs to achieve a real texture and look more natural.

[0033] S9. Remove the dividing strips. After the building paint is dry, tear off the dividing strips. At this time, pay attention to the protection of the finished product. If there is local damage, it should be repaired in time.

[0034] S10. Spray the topcoat (add color paint for antique treatment). After sanding, the real effect is basically achieved, but the surface is easily stained with dust. In order to avoid cleaning and maintenance in the later stage and increase the service life, the topcoat should be applied by roller coating after the above steps are completed. The topcoat needs to be milky white, and 5%-10% of yellow-brown topcoat should be added (the proportion of topcoat added to color paint should be strictly controlled. If it is too large, the glossiness will not meet the requirements and the dark sub-color effect will be accelerated after natural aging) to enhance the antique and antique effect.

[0035] Those skilled in the art may make various modifications and variations to the present invention. If these modifications and variations are within the scope of the claims of the present invention and their equivalents, then these modifications and variations are also within the protection scope of the present invention.

[0036] The contents not described in detail in the specification are prior art known to those skilled in the art.

Claims

1. A construction process for an antique red brick facing structure, characterized in that: The antique red brick facing structure comprises a leveling layer, a first putty layer, a second putty layer, an alkali-resistant primer layer, a first real stone paint surface layer, a second real stone paint surface layer and a finishing paint layer from inside to outside; the leveling layer adopts horizontal mortar; the putty layer is pressed by an iron trowel; black sand is added to the real stone paint surface layer to simulate color, and it is applied by manual scraping, and then a small scraping board is used to rub and carve simulated textures after scraping; a yellow-brown finishing paint with a volume fraction of 5% to 10% is added to the finishing paint layer; and its construction process comprises the following steps: S1. For the repair of the original wall, the hollows should be chiseled out first, and the loose and detached parts on the surface should be cleaned first to ensure that the base surface is flat and clean, and then level it with 1:2.5 cement mortar; S2, scrape the first layer of leveling waterproof putty, the thickness is 2mm~2.5mm; S3, scrape the second coat of putty, thickness 2mm, use 240 iron trowel to press; S4. When spraying alkali-resistant primer, the paint should be applied evenly and fully covered; S5. Paste the grid strips. Before pasting, design the red brick pattern and select the width of the masking tape according to the size of the joints. Then draw the ink lines of the grid strips on the wall, cover the area inside the grid strips with paper tape, and draw a straight line on the same wall. S6. Spray the first layer of real stone topcoat with a special spray gun. Keep the nozzle of the spray gun vertical to the spraying surface. The spraying distance is 30-40cm. Spraying should be completed in one go. Start spraying from the inner corners or lines. The total thickness of the real stone paint after completion is 2mm-2.5mm. It is required to have uniform floating points and consistent color. S7. Manually scrape and apply the second layer of real stone topcoat. Add 15% to 20% black sand by volume into the real stone paint. The black sand is mixed sand of different grades of 200 to 400 mesh. Manual scraping is used during construction. S8, rubbing and engraving simulation texture, 20 minutes after the second layer of real stone topcoat is manually scraped, use a scraping board to manually process, use a small scraping board to rub and engrave the appropriate texture, and then press it with a large board to deal with sharp barbs; S9. Remove the separator strips. After the architectural paint is dry, tear off the separator strips. If there is any local damage, repair it in time. S10, spraying the finishing paint. After the above steps are completed, the finishing paint is applied by roller coating. The finishing paint adopts a milky white color, and 5% to 10% by volume of yellow-brown finishing paint is added to enhance the antique effect.

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