Construction process and acceptance standard of wa

2022-07-22
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The construction process, process and acceptance standard of wall tile pasting project in Xi'an decoration classroom 1. The standard procedure of wall tile paving is: base cleaning → bottom ash → brick selection → infiltration → brick arrangement → snapping lines → pasting standard points → pasting wall tiles → curving → joint wiping → cleaning. 2. The varieties, specifications, colors and patterns of wall tiles and stones shall meet the requirements of the design and residents. 3. Before using wall tiles, you should carefully check the size (length, width, diagonal, flatness), color

the construction process, process and acceptance standard of wall brick pasting project in Xi'an decoration classroom

1. The standard procedure of wall brick paving is: base cleaning → bottom ash → brick selection → infiltration → brick arrangement → snapping lines → pasting standard points → pasting wall bricks → jointing → joint wiping → cleaning

2. The varieties, specifications, colors and patterns of wall tiles and stones should meet the requirements of the design and residents

3. Before using the wall tiles, carefully check the size (length, width, diagonal, flatness), color difference, variety of the wall tiles, and the color number of each piece to prevent mixing

4. Base course cleaning. If the wall is a coating base course, the coating must be removed after watering, and the roughening and chiseling depth shall not be less than 5mm, the spacing shall not be greater than 5cm, and the cement slurry shall be brushed once. In addition, all kinds of dirt on the wall should be cleaned up and watered one day in advance. If the base course is a new wall, when 70% of the cement mortar is dry, bricks should be arranged, lines should be snapped, and face bricks should be pasted

5. Check the flatness and verticality of the base course. If the error exceeds 2 cm (check with a 2m guiding rule), first use 1:3 cement mortar for priming and leveling before proceeding to the next process

6. Before construction, the wall surface should be brushed with a layer of water purification mud. Before using the wall tiles, the tiles should be fully soaked and wetted, subject to no foaming, and taken out to dry for use

7. Determine the layout of wall tiles, arrange them horizontally and vertically on the same wall, and the non whole tiles should be arranged at the secondary parts or internal corners. Wall tiles with a width and height of less than 10 cm cannot be put on the wall. The wall tiles should be divided in half, that is, non whole tiles should be left on both sides of the wall at the same time to maintain beauty. High grade matching bricks require five side butt joints (that is, on the basis of four side butt joints, wall tiles and floor tiles are also required to be butt joints)

8. Dachang cement is used. The volume ratio of cement mortar is generally 1:2.5-1:3, and the bonding thickness is 8-15 mm

9. When plastering wall tiles on wooden partition walls, steel mesh should be hung on the wooden base course first, and then the water purification slurry should be brushed once, and then the wall tiles should be pasted after plastering the base course

10. Before the wall tiles are pasted, the horizontal and vertical control lines must be aligned, the bottom ruler must be padded (pay attention to the elevation and position of the floor drain, and the bottom ruler must be placed horizontally and firmly), the line must be hung and pasted to ensure that the surface is flat, the pasting should be carried out from bottom to top, the whole room or independent parts must be completed on the same day, or the joint must be left at the corner

11. Before inlaying the belt brick, check whether the size is coordinated with the size of the wall brick

12. In the process of wall tile installation, the mortar between the brick joints must be full, and hollowing is strictly prohibited. Face bricks with damaged corners must be replaced. After the top layer of the wall tiles is pasted, the upper gap shall be filled with cement mortar to prevent the wall tiles from cracking when making holes in the gusset ceiling

13. The lowest layer of wall tiles should be reserved until the floor tiles are finished. When purchasing wall tiles for the second time, you must bring sample bricks and select bricks with the same color number

14. The intersection of wall tiles with washstand and bathtub can be subsidized after the installation of washstand and bathtub as required

15. When the wall tiles are inlaid, the cutting machine shall be used to cut the hole when encountering the switch panel, and the hole cutting shall be tight. When the outlet hole of the water pipe is in the middle of the wall brick, the wall brick is not allowed to be disconnected. Use a glass drill to cover the brick and cut it. It is strictly forbidden to use incomplete bricks for splicing, so that personal safety will not be injured during beauty, installation or inspection. At the junction with doors and windows, the door edge line should cover the gap as much as possible

16. Point the joints with dry white cement and talc powder within 1 hour after the wall tiles are paved and clean. The joint shall be cleared once before handover and acceptance, and the joint shall be pointed with wet white cement and talc powder, which shall be clean

17. Pay attention to the protection of finished products to prevent surface pollution and bruises

common quality problems and treatment methods of wall tile pasting

common quality defects of wall tile pasting are hollowing, falling off, discoloration, uneven joints and surface cracks

1. Hollowing and falling off: the main reasons are insufficient bonding materials, insufficient brick soaking and unclean base treatment. During construction, the glazed tiles must be clean and soaked for not less than 2 hours. The bonding thickness should be controlled between 7-10 mm, and should not be too thick or too thin. When pasting, the face brick and the bottom layer should be pasted tightly, and a wooden hammer can be used to knock. When hollowing occurs, the wall tiles should be removed, the original bonding mortar should be removed, and 107 glue cement mortar accounting for 3% of the total volume should be used to repair

2. Color change: in addition to poor quality of wall tiles and too thin glaze, improper operation methods are also important factors. Materials shall be strictly selected during construction, and clean water shall be used for soaking glazed tiles. The pasted cement mortar should use pure sand and cement. During operation, the residual mortar on the brick surface shall be cleaned at any time. If the color changes greatly, the wall tiles should be updated

3. Uneven joints: the main reasons are differences in brick specifications and improper construction. During construction, face bricks shall be carefully selected, and those of the same size shall be grouped together and used on the same wall. A standard point must be set, and the standard point should be subject to the guiding rule being able to lean up. After each line is pasted, it should be checked horizontally and vertically with the guiding rule in time, and corrected in time. If the joint exceeds the allowable error, the wall tiles shall be removed in time for rework

acceptance criteria:

1. The surface is clean without scratches, with uniform color, clear patterns, uniform joints, and no cracks, missing edges and corners on the plate

2. When wall tiles are pasted, the flatness shall be checked with a 2m guiding rule. The flatness shall be ≤ 2 mm, the width of adjacent gaps shall be ≤ 1 mm, the flatness shall be ≤ 2 mm, and the height difference of joints shall be ≤ 0.5 mm

3. The wall tiles must be firmly pasted without deflection. Empty drum shall be controlled at 5% of the total, and the area of single empty drum shall not exceed 10%

4. The internal and external corners of the wall tiles must be checked to 90 degrees with a corner ruler, and the external corners of the wall tiles must be 45 degrees in contact with each other. The contact angle is tight, and the gap is through

5. When cutting the switch socket position of the wall brick, the position must be accurate to ensure that the gap is tight after the switch panel is installed

6. Cut holes at the pipe outlet of the wall tiles, and the holes shall be tight

7. When the wall tiles are inlaid, the intersection with the door opening should be flat, and the gap should be straight and uniform

remarks:

construction technology and quality identification of marble wall

the fabrication of marble wall usually adopts the method of anchoring and grouting. The process flow is: base treatment → drilling and grooving → threading, binding reinforcement mesh → snapping line → inlaying marble → grouting and joint wiping → waxing

the following points should be paid attention to in identifying the quality of the marble wall: ① the marble edge should be neat, and there should be no cracks and corner damage; ② The marble slab and the base must be firmly bonded, and the grouting must be full and dense, without hollowing, skewing and warping. ③ The marble pattern is natural, the surface is flat, the tone is harmonious, the caulking is tight, the joints are flat, and the pattern is connected naturally

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