Construction process and acceptance standard of fl

2022-07-22
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The construction process, process and acceptance standard of floor tile paving project in Xi'an decoration classroom 1. The standard procedure of floor tile paving is: cleaning and finishing the base floor → cement mortar leveling → setting the elevation and snapping the line → installing standard blocks → selecting materials → soaking → paving → pouring → cleaning → curing and handover. 2. The ground of the old house must be fully roughened, with a concave depth of not less than 0.5 mm and a spacing of 5 cm, and then brushed with a layer of clean water mud. Pay attention not to collect water to prevent it from seeping downstairs through slab joints. 3. Yes, there is

the construction process, process and acceptance standard of floor tile paving project in Xi'an decoration classroom

1. The standard procedure of floor tile paving is: cleaning and finishing the base floor → cement mortar leveling → setting the elevation and snapping the line → installing standard blocks → selecting materials → soaking → paving → pouring → cleaning → curing and handover

2. The ground of the old house must be fully roughened, with a concave depth of not less than 0.5 mm and a spacing of 5 cm, and then brushed with a layer of clean water mud. Pay attention not to collect water to prevent it from seeping downstairs through slab joints

3. For those with drainage slope requirements, such as toilets, bathrooms, etc., the tiling slope direction should be controlled by pulling wires according to the corresponding slope

4. Base acceptance: check the surface flatness with a 2m guiding rule, and the deviation shall not be greater than 5mm, and the elevation deviation shall not be greater than ± 8mm

5. The variety, specification, color and pattern of stone and floor tiles should meet the requirements of the design and residents. The surface of the decorative panel should be free of quality defects such as scratches, missing edges and corners. Expired and caked cement shall not be used as bonding material. All floor tiles must be unpacked and selected before laying

6. Before paving, the floor tiles should be carefully measured and typeset by computer as much as possible, and a reasonable scheme should be selected to count the specific number of floor tiles, for the purpose of beautiful arrangement and reducing loss, and the geometric dimension of the room should be checked to see if it is neat

7. 1:2.5 cement mortar volume ratio shall be used for mortar (the specific common grip is: holding it in a lump, landing and flowering), the bonding layer shall not be less than 12 mm thick, the mortar shall be full, and the cement shall be Dachang cement. eight hundred × 800 polished brick or granite adopts the volume ratio of 1:4 ~ 1:6 cement mortar. six hundred × Above 600 (including 600 × 600). Floor tiles with specifications above 500x500 should be dry pasted. Light colored granite and marble shall be hung and brushed with white cement to prevent color bleeding

8. Before paving, the floor tiles should be soaked in water and dried to be dry outside and wet inside. There is no trace on the surface, and the color should be selected for use

9. Before paving, draw a cross line in the horizontal and vertical directions. During paving, the horizontal and vertical must be connected, and no staggered joints are allowed

10. When the floor tiles are laid, they should be cleaned as soon as they are laid and kept clean at any time. (clean with cotton yarn or sawdust), and clean the cement mortar in the brick joint, and point the joint after it is completed

11. Jointing shall be carried out before completion. The joints shall be cleared first, and the putty shall be mixed with white cement and talc powder. The jointing putty shall be 1 mm lower than the brick surface

12. During the paving of floor tiles, other types of work shall not be polluted or trampled by people. After the completion of floor tiles, the joints shall be cleaned within 24 hours, and they shall be cleaned as soon as they are done, and they shall be cured. People are not allowed to walk within two days. In order not to affect the construction of other projects, solid wood plates can be laid on the ground for people to walk

13. After the floor tiles are laid, after checking that there is no flatness error, hollowing, color difference, etc., cover them all with thick cardboard for protection. The iron nails on the cardboard must be removed, and the cardboard must be tightly pasted with sealing glue to prevent sundries from entering

14. It is strictly forbidden to use water without drainage or ponding equipment, especially to prevent wetting the cardboard used to protect the floor tiles, so as to prevent indirect pollution of the floor tiles

15. The foundation filling of flower beds and toilets is filled with moist concrete and carbon slag, so that the filling is dense, firm and reliable, light in weight, and free of potential safety hazards in bearing

16. The stone or ceramic tile skirting line can be flush with the wall facade according to the customer's requirements, so that the construction will not accumulate dust, easy to clean and sanitary, and easy to place furniture

common quality problems and treatment methods of floor tile paving

the common quality defects of floor tile paving are hollowing and large flatness deviation

1. Hollowing: the main reasons are that the mortar of the bonding layer is thin, the cement paste is dry when paving, the pollutants on the back of the plate are not removed, and people walk or press hard in the morning after the curing period. During the construction, the mortar of the bonding layer shall be dry, subject to the scattering on the ground. When paving, the water cement ratio of cement paste is 1:2 (volume ratio), and it is strictly forbidden to pave with cement flour. During the curing period, the Board shall be erected and it is forbidden to walk on the surface. If hollowing occurs, it should be reworked and repaved by taking out the hollowed floor tiles, sucking them with suction cups, lifting them straight out, and then paving them according to the specifications

2. Large flatness deviation: the main reason is the warping of the plate, except that the construction operation is improper and the plate surface is not leveled. During construction, materials shall be strictly selected, and unqualified products with serious warpage shall be removed. Those with uneven thickness can be leveled with mortar on the back of the board. For those with large local deviation, they can be leveled with marble machine, and then polished. If the plate is not leveled, it should be removed and reinstalled

acceptance criteria:

1. The surface is clean, the lines are consistent, and there are no scratches, color differences, cracks, pollution, missing edges and corners, etc

2. The gap between the floor tile edge and the wall is appropriate, and the skirting board can completely cover the gap, with the same width and straight upper mouth

3. The flatness of floor tiles shall be checked with a 2m level, and the error shall not exceed 2mm, and the height difference of adjacent tiles shall not exceed 1mm

4. The floor tiles must be firmly pasted, the hollowing shall be controlled at 5% of the total, and the area of single hollowing shall not exceed 10% (there shall be no hollowing on the main channel)

5. The joint width of the floor tile is 1 mm, which shall not exceed 2 mm. The pointing is uniform and straight

6. The horizontal error shall not exceed 3mm

7. The floor of kitchen and toilet should not be higher than the floor of indoor walkway or hall; It is better to be 10-20mm lower than the indoor floor

8. The paving slope of floor tiles with drainage requirements shall meet the drainage requirements. The floor tile with floor drain shall be paved and flashed (a very small inclined slope), and the direction shall point to the floor drain, and the joint with the floor drain shall be tight and firm

厦门妇产医院

郑州不孕不育医院

常州男科医院

成都男科医院

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