Wall pavement project
I. General requirements
1. This chapter is applicable to the installation and installation of residential wall coverings for materials such as stone, wall tiles, wood, fabrics, and wallpapers.
2. Wall pavement works shall be carried out after wall concealment and plastering works and ceiling projects have been completed and experience has been received. When the wall has waterproof requirements, acceptance of the waterproof project shall be carried out.
3. The natural stone paved with the wet operation method should be treated with anti-alkali.
4. When the decorative tile is pasted on the waterproof layer, the adhesive material should be compatible with the performance of the waterproof material.
5. The surface layer of the wall shall have sufficient strength and its surface quality shall comply with the relevant provisions of the current national standards.
6. The ambient temperature of the wet construction site should be above 5°C. The relative humidity of the air should not exceed 85% during the paste application. The humidity and temperature should be prevented from changing drastically.
Second, the main material quality requirements
1. The types and specifications of stone should meet the design requirements. The surface of natural stone must not have defects such as hidden damage or weathering.
2. The types and specifications of wall tiles should meet the design requirements and should have product qualification certificates.
3. The variety and quality grade of wood should meet the design requirements and the moisture content should meet the relevant requirements of the current national standards.
4, fabrics, wallpaper, adhesives, etc. should meet the design requirements, and should have a performance test report and product qualification certificate.
Third, the construction points
Wall tiles should meet the following requirements:
1. The wall brick should be selected before laying, and should be immersed in water for more than 2 hours to dry the surface moisture.
2. Positioning and rowing of bricks should be carried out before paving, and non-complete bricks should be discharged at the secondary site or the female corner. Each wall should not have two columns of non-complete bricks, and the width of non-complete bricks should not be less than 1/3 of the entire brick.
3, before the paving should determine the horizontal and vertical signs, a good footing, hanging line posted. The surface of the brick wall should be flat, the seams should be straight, and the seam width should be uniform. The inner corner bricks should be pressed to the right, and the outer corners should be made with butt joints at an angle of 45°. At the protruding parts of the wall, the bricks should be cut and anastomosed. No bricks should be used together.
4, the use of mortar should be used 1:2 cement mortar, mortar thickness should be 6 ~ 10mm. Cement mortar should be placed on the back of the wall tiles, and one wall should not be tiled to the top to prevent it from falling.
Wall stone pavement should meet the following requirements:
1. Before wall tiles are laid, they should be selected and pre-assembled according to the design requirements.
2. The stone with low strength or thinness should be attached with glass fiber mesh on the back.
3. When using the wet operation method, the fixed stone reinforcement mesh should be firmly connected with the embedded part. Each piece of stone and steel mesh pull contact shall not be less than 4. Pulling wire should have anti-rust properties. Before the mortar is poured, the back surface of the stone and the base layer should be moistened, and the gap between the stone slabs should be temporarily sealed by using the sealing material to avoid leakage of the slurry. Casting mortar should be used 1:2.5 cement mortar, should be layered when pouring, each layer should be poured into the height of 150 ~ 200mm, and does not exceed 1/3 of the plate height, transplanting should be dense. After the initial coagulation, the upper cement mortar can be poured.
Wood decoration wall production and installation should meet the following requirements:
1. The verticality and flatness of the grass-roots level should be checked before production and installation, and moisture-proof treatment should be carried out for moisture-proof requirements.
2, according to design requirements pop up elevation, vertical control lines, dividing lines. Punching installation of wooden bricks or wooden wedges, the depth should not be less than 40mm, wooden tiles or wooden wedges should be treated with anti-corrosion.
3, keel spacing should meet the design requirements. When the design is not required: lateral spacing should be 300mm, vertical spacing should be 400mm. The keel should be securely attached to the wooden block or wooden wedge. Keel essence grass-roots board should be fireproofed.
4. Matching panels should be installed before the installation, color, wood grain docking should be naturally harmonized.
5. The veneer panel should be fixed with shot nails or glue. The joints should be on the keel and the seams should be flat.
6. The inlaid wooden decorative wall can be shot obliquely from the concave side with a shot nail. The vertical control line must be calibrated when installing the first block.
7. When the sealing edge is closed, apply a nail to fix it. The position of the nail should be at the groove of the line or on the side of the back line of sight.
Soft wall construction and installation should meet the following requirements:
1. The fireproofing should be applied to the filling materials, textile fabrics, keels, and wood-based laminates used for soft wall coverings.
2, the wall surface moisture treatment should be evenly painted a layer of oil or oiled paper. Do not use bitumen felt as a moisture barrier.
3. The wood keel should be prefabricated with grooved concrete, which can be installed as a whole or in slices. The connection to the wall should be tight and firm.
4. The dimensions of the filling material should be correct. The edges and corners should be square and should be tightly bonded to the wood-based laminate.
5, fabric fabric cut when the latitude and longitude should be straight. The installation should be close to the wall, the joints should be tight, the pattern should be consistent, no ripples, wavy edges and folds, the surface should be clean.
6, soft cloth and pressure lines, face line, skirting board, electrical boxes and other junctions should be tight, straight, no burrs. Openings such as electrical box lids should be accurately sized.
Wall-papering should meet the following requirements:
1. The surface of grass-roots level should be flat, without powdering, peeling, cracks and protrusions, and the color should be the same. Moisture-proof requirements should be treated.
2, before the paste should be wallpaper, wall cloth varieties, colors, specifications for matching. Patching, cutting, numbering, and pasting should be pasted in order of number.
3, the wall should be used throughout the paste, vertical surface after the first level, the first detailed after the big surface, first to ensure that the vertical after the flower meet, the vertical surface is the first after the next, the first long wall after the short wall, the water level is High first and then low. The seams at the female corners should be overlapped, and the corners at the outer corners should have no seams.
4, PVC wallpaper before the paste wallpaper should be wetted with water for several minutes before the wall surface paste should be painted on the grass surface adhesive, when the ceiling paste, grassroots and the back of the wallpaper should be painted adhesive.
5, the composite wallpaper shall not be soaked in water, paste the adhesive on the back of the wallpaper should be painted on the back of the adhesive, placed a few minutes, when the paste, the base surface should be painted adhesive.
6, textile fiber wallpaper should not be soaked in water, paste the back of the cloth should be used to clean the back.
7. The wallpaper with adhesive should be soaked in water for a few minutes before the paste. Apply a thin layer of adhesive when applying the ceiling.
8, metal wallpaper paste should be soaked 1 ~ 2min, dry 5 ~ 8min after the brush on the back. Brush glue should use special wallpaper powder glue, while brushing glue, brush the glue part, roll up on foam wallpaper roll.
9, glass fiber substrate wallpaper, non-woven wall cloth without infiltration. Adhesives with higher adhesive strength should be used. The adhesive should be applied on the surface of the base layer before the paste is applied. The back of the wall cloth should not be glued. The glass fiber wall cloth must not be pulled diagonally to avoid deformation when peeling.
10, switch, socket and other electrical boxes out of the wall, should be removed before the lid to remove the lid.
Finishing project
I. General requirements
1. This chapter is applicable to the interior construction of water-borne paints, solvent-based paints and art finishes.
2. Finishing works should be carried out after plastering, ceilings, details, ground and electrical engineering have been completed and accepted.
3, paint engineering should give priority to the use of green products.
4, when the concrete or plaster base brushing solvent-based paint, the moisture content shall not be greater than 8%; when brushing water-based paint, the moisture content shall not exceed 10%; wood substrate moisture content shall not exceed 12%.
5, paint should be mixed before use, and should be used within the specified time.
6, the construction site environment temperature should be between 5 ~ 35 °C, and should pay attention to ventilation and dust.
Second, the main material quality requirements
1. The type and color of the coating should meet the design requirements and should have product performance test report and product qualification certificate.
2. The adhesive strength of the putty used in the finishing project shall comply with the relevant provisions of the current national standards.
Third, the construction points
1. Grassroots treatment should meet the following requirements:
1, concrete and cement mortar plaster base: should be full of scraping putty, sandpaper light, the surface should be smooth, straight line angle.
2, the gypsum board base: should be designed according to the requirements of the board seam, nail hole after processing, full scraping putty, sandpaper light.
3, varnish wooden grass: the surface should be smooth, color harmonization, surface pollution, cracks, incomplete defects.
4. Harmonic lacquer essence: The surface should be smooth and free of serious pollution.
5, metal base layer: the surface should be rust and rust treatment.
2, general method of painting construction:
1ã€Rolling method: The hair rollers that draw the paint liquid are first moved by the W method to apply the paint on the base layer, and then the hair rollers that do not draw the paint liquid are pressed against the base layer to move up and down and left and right to make the paint liquid. The base layer is evenly spread, and finally it is rolled in a certain direction with a roller that draws the paint liquid. Yin corner and upper and lower mouth should use row brush to find Qi.
2, spraying method: spray gun pressure should be controlled in the range of 0.4 ~ 0.8MPa. Spray gun and the wall should be kept vertical when spraying, the distance should be about 500mm, uniform speed parallel movement. The overlap width of the two lines should be controlled to 1/3 of the spray width.
3, brushing method: Press the first left and right, first up and down, after the first easy, first behind the order.
3, wood base varnish varnish: the essential grass roots on the knot, rosin part of the shellac seal closed, the application of oily nails at the eye to embed in compensation. Before putting paint and coloring, you should paint the sealer once again, and then repeat the color matching and color repair. After each repair, brush the intermediate paint again, dry it, and polish until the color is tuned and unified. paint.
4, wood base paint mixing paint: first full of brush oil again, wait until after the dry with an oil putty nail holes, cracks, incomplete scraping put the formation of smooth, dry polished smooth, then brush the middle and surface paint.
5. For basal alkali and salt-stripping, the grass-roots should be washed with 3% oxalic acid solution first, then rinse with clean water or brush the alkali-resistant primer on the base layer, wait for it to dry, then putty, then paint the surface coating. .
6. The middle coating of relief painting should be uniform in particle, and it should be evenly rolled with special plastic roller, kerosene or water, and the thickness should be uniform. After completely drying and solidifying, the finish coating can be carried out. The surface layer is water-based paint and should be sprayed, solvent type. Paint should be brushed. The interval should be more than 4h.
7. The paint and paint should be polished thoroughly after the coating is applied. The grinding application force should be uniform and the bottom should not be ground.
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