PVC floor is very common in modern office decoration, with the advantages of waterproof, fireproof, mute, etc .The laying steps of PVC floor during decoration are as follows:
1. Pour the mixed self leveling slurry on the construction floor, it will flow and level the ground by itself. If the design thickness is less than or equal to 4mm, it needs to use the special tooth scraper to scrape slightly.
2. After that, the construction personnel shall put on special spiked shoes and enter the construction ground. The special self leveling air cylinder shall be used to roll gently on the self leveling surface to release the air mixed in the mixing, so as to avoid the bubble pockmarked surface and the height difference of the interface.
3. Please close the site immediately after the completion of construction, forbid walking within 5 hours, avoid heavy object collision within 10 hours, and lay PVC floor after 24 hours.
4. In winter construction, the floor shall be laid 48-72 hours after self leveling construction.
5. If it is necessary to finish polishing the self leveling, it should be carried out after the self leveling cement is completely dry.
Inspection of construction conditions
1. Use a temperature and humidity meter to detect the temperature and humidity. The indoor temperature and the surface temperature should be 15 ℃, instead of construction below 5 ℃ and above 30 ℃. The relative air humidity suitable for construction shall be between 20% and 75%.
2. The moisture content of the base course shall be tested by the moisture content tester, and the moisture content of the base course shall be less than 3%.
3. The strength of base course shall not be lower than the requirement of concrete strength C-20, otherwise suitable self leveling shall be adopted to strengthen the strength.
4. The test result with hardness tester shall be that the surface hardness of base course shall not be less than 1.2 MPa.
5. For the construction of floor materials, the unevenness of the base course shall be less than 2mm within 2m straight edge, otherwise, proper self leveling shall be adopted for leveling.
Surface cleaning
1. Use a floor grinder with more than 1000 watts and appropriate grinding pieces to polish the floor as a whole, remove paint, glue and other residues, bulge and loose land, and empty land must also be removed.
2. The floor shall be vacuumed and cleaned with an industrial vacuum cleaner of not less than 2000 Watts.
3. For cracks on the floor, stainless steel stiffeners and polyurethane waterproof adhesive can be used to pave quartz sand on the surface for repair.
Interface agent construction
1. The absorbent base course, such as concrete, cement mortar and leveling layer, shall be sealed and primed with multi-purpose interface treatment agent and water at a ratio of 1:1.
2. For non absorbent base course, such as ceramic tile, terrazzo, marble, etc., it is recommended to use dense interface treatment agent for bottoming.
3. If the moisture content of the base course is too high (> 3%) and the construction needs to be carried out immediately, the epoxy interface treatment agent can be used for priming treatment, provided that the moisture content of the base course is not more than 8%.
4. The interface treatment agent was applied evenly without obvious liquid accumulation. After the surface of the interface treatment agent is air dried, the next self leveling construction can be carried out.
Self leveling ratio
1. Pour a package of self leveling into the mixing bucket filled with clear water according to the specified water cement ratio, and pour and mix at the same time.
2. In order to ensure even self leveling mixing, it is necessary to use a high-power, low-speed electric drill with a special mixer for mixing.
3.S tir to a uniform slurry without caking, allow to stand and mature for about 3 minutes, and stir again briefly.
4. The amount of water added shall be in strict accordance with the water cement ratio (please refer to the corresponding self leveling instructions). Too little water will affect the fluidity, too much will reduce the strength after curing.
Self leveling construction
1. Pour the mixed self leveling slurry on the construction floor, it will flow and level the ground by itself. If the design thickness is less than or equal to 4mm, it needs to use the special tooth scraper to scrape slightly.
2. Then, the construction personnel shall put on special spiked shoes, enter the construction ground, use the special self leveling air cylinder to roll gently on the self leveling surface, release the air mixed in the mixing, and avoid bubble pockmarked surface and interface height difference.
3. Please close the site immediately after the completion of construction, do not walk within 5 hours, avoid heavy object impact within 10 hours, and lay the floor after 24 hours.
4. In winter construction, the floor shall be laid 48 hours after self leveling construction.
5. If it is necessary to finish polishing the self leveling, it should be carried out 12 hours after the self leveling construction.
Pre paving
1. Both coil and block materials shall be placed on the site for more than 24 hours to restore the memory of materials and keep the temperature consistent with the construction site.
2. Use the special trimming device to cut and clean the rough edge of the coil.
3. When laying blocks, there should be no joint between two blocks.
4. When laying coiled materials, the overlap of two pieces of materials shall be cut by overlapping, which is generally required to overlap by 3cm. Pay attention to keep one knife cut.
Gluing
1. Select the appropriate glue and rubber scraper for the floor according to the corresponding relationship of the supporting tables in this guide.
2. When the coiled material is paved, the end of the coiled material shall be folded. First clean the floor and the back of the roll, and then scrape the glue on the floor.
3. When paving the block, please turn the block from the middle to both sides, and also clean the ground and floor surface and paste with glue.
4. Different adhesives will have different requirements in construction. Please refer to the corresponding product instructions for construction.
Laying and installation
1. After the floor is pasted, first push and press the floor surface with a soft wood block to level and extrude the air.
2. Then use a 50 or 75 kg steel roller to roll the floor evenly and trim the warped edge of the joint in time.
3. The excess glue on the floor surface should be wiped off in time.
4. After 24 hours, notch and weld again.
Slotting
1. Slotting must be carried out after the glue is completely solidified. Use a special slotter to slot along the joint. In order to make the welding firm, the slotting shall not penetrate the bottom. It is recommended that the slotting depth be 2 / 3 of the floor thickness.
2. At the end where the seamer cannot cut, please use the manual seamer to cut at the same depth and width.
3. Before welding, the residual dust and debris in the groove shall be removed.
Welding
1. Manual welding gun or automatic welding equipment can be used for welding.
2. The temperature of welding gun should be set at about 350 ℃.
3. Press the electrode into the opened groove at a proper welding speed (to ensure the melting of the electrode).
4. When the electrode is half cooled, use the electrode leveler or monthly cutter to roughly cut the area where the electrode is higher than the floor plane.
5. When the electrode is completely cooled, use the electrode leveler or monthly cutter to cut the remaining convex part of the electrode.
Post time: Jan-20-2021
