SPC floor installation process introduction

  1. The first step of SPC floor installation: ground detection, use the temperature and humidity meter to detect the temperature and humidity, indoor temperature and surface temperature should be 15 ℃, and should not be constructed below 5 ℃ and above 30 ℃. The relative air humidity suitable for construction shall be between 20% and 75%. 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%. The strength of the base course shall not be lower than the requirement of the concrete strength C-20, otherwise suitable self leveling shall be adopted to strengthen the strength. The test result with hardness tester shall be that the surface hardness of base course shall not be less than 1.2 MPa. For the construction of stone and plastic 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.
 

  SPC floor installation process introduction

  2. The second step of SPC floor installation: floor pre-treatment: 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 plots, and empty plots must also be removed. The floor shall be vacuumed and cleaned with an industrial vacuum cleaner of not less than 2000 Watts. For cracks on the floor, stainless steel stiffeners and polyurethane waterproof adhesive can be used to pave quartz sand on the surface for repair.

  SPC floor installation process introduction

  3. The third step of SPC floor installation: self leveling construction - priming. The absorbent base course, such as concrete and cement mortar leveling layer, shall be diluted with water at the ratio of 1:1 and then sealed priming. For non absorbent base course, such as ceramic tile, terrazzo, marble, etc., it is recommended to use dense interface treatment agent for priming. 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%. The construction of interface treatment agent shall be uniform without obvious liquid accumulation. After the surface of the interface treatment agent is air dried, the next self leveling construction can be carried out.

  SPC floor installation process introduction

  4. The fourth step of SPC floor installation: self leveling construction - mixing, pour a package of self leveling into the mixing bucket filled with clear water according to the specified water cement ratio, and mix while pouring. 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. Stir to a uniform slurry without caking, allow it to stand and mature for about 3 minutes, and then stir for a short time. 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 liquidity. Too much will reduce the strength after curing.

  SPC floor installation process introduction

  5. The fifth step of SPC floor installation: self leveling construction laying, pouring the mixed self leveling slurry on the construction floor, it will flow and level the ground by itself, if the design thickness is ≤ mm, it needs to use the special tooth scraper to scrape slightly. 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. After the completion of construction, please close the site immediately, do not walk within 5 hours, avoid the impact of heavy objects within 10 hours, and lay the stone plastic floor after 24 hours. In winter construction, the floor shall be laid after 48 hours of self leveling construction. If it is necessary to finish grinding and polishing the self leveling, it should be carried out after 12 hours of self leveling construction.

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