Sports floor construction considerations

Before the construction, the ground should be cleaned, not sand, drum or dusty oil. The error of the ground flatness within 2 square meters is within 2 mm. For special floors (such as tiled floors), brick joints of less than 2 mm and bricks and bricks with no height difference can be directly applied; floors with brick joints larger than 2 mm must be leveled (recommended for self-leveling). Self-leveling construction precautions 1. Ensure that the ground temperature cannot be lower than 5 degrees Celsius. When the temperature is lower than 5 degrees Celsius, self-leveling is prone to brittle fracture and looseness occurs. 2. The primer should be evenly applied before the self-leveling construction. Self-leveling construction shall be completely dry, uniform without liquid accumulation, and the primer shall be completely absorbed by the base layer; during the construction, a pack of self-leveling cement shall be poured into the mixing tank containing water according to the specified water-cement ratio, while pouring Stir. In order to ensure uniform self-leveling, it is necessary to use high-power, low-speed electric drill with a special agitator to stir, stir to a uniform slurry without agglomeration, and let it stand for about 3 minutes, then stir briefly, the amount of water should be strict. According to the water-cement ratio. Too little water will affect the fluidity, too much will reduce the strength after curing; the agitated self-leveling slurry will be dumped on the detachable elastic flat PP mat sport flooring manufacturer, and the thickness will be controlled by the self-flowing tweezers, which will flow and level the ground by itself; If it is less than or equal to 4 mm, it needs to be scraped with a special tooth plate. Then the construction personnel should wear special spikes to enter the construction ground and use a special self-leveling venting roller to gently roll on the self-leveling surface to stir. The air mixed in is released, avoiding the bubble surface and the interface height difference; please close the site immediately after the construction is completed, and it is forbidden to walk for 5 hours. Avoid heavy impact within 10 hours and lay the ground after 24 hours. In winter construction, the laying of the removable synthesis prefabricated interlocking running track should be carried out after 48-72 hours. If self-leveling is required for fine grinding and polishing, it should be carried out after self-leveling is fully dried and solidified; the specific construction method is in accordance with the instructions of the self-leveling cement manufacturer. Precautions when laying sports flooring 1. After the ground is leveled, it should be cleaned up, not sanded, drummed or dusty or oily; 2, the area of scraping each time when scraping glue should not be too large, generally about 50-60 square meters each time, to avoid excessive drying time of glue, affecting the strength of adhesion; 3. The room temperature should not be lower than 5 degrees Celsius during construction; the interlock commercial basketball court surface should be placed flat 24 hours before construction to keep it at a constant temperature with the construction site. 4, the floor can not be squeezed too tight during construction, should retain natural expansion joints; (+10 degrees below construction is not allowed. +10 degrees to +20 degrees should be left 0.2mm-0.3mm; +20 degrees to +35 degrees Can be left naturally) During the construction process, 50KG-60KG (or a small roller when rolling) will be rolled and rolled back in front of the construction, and the remaining gas will be drained to completely bond the floor to the ground.