Theodolite base slope detecting plastic track boundary from the start, the straights every 10m mark a set of points, the curve of a circle with the center point of a set of points marked every 15 °, within each set of points including the first and the eighth channel along the outer edge two points, then water level measuring elevation for each point and calculate the height difference and two points on each set of the first and the eighth channel fellow adjacent points of elevation. It requires fundamental transverse runway longitudinal slope gradient ≤1 ≤1 ‰. Primary surface treatment a, moisture exclusion concrete moisture content should be less than 5%, or should be ruled out before the water after coating. The method for removing the water are the following: Ventilation: enhance air circulation and accelerate the air flow, remove moisture and promote further evaporation of water in concrete. Heating: improving cement concrete and the surrounding air temperature, pu plastic runway, accelerate concrete migrate to the surface of the water rate, the plastic runway, it quickly evaporates. It should use forced air heating and radiant heating. b, PH value is greater than the surface back to base 8, with the pickling process: pickling (for more oil in the ground): the mass fraction of 10 to 15% hydrochloric acid to clean concrete surface, until the reaction is complete , then rinse, the plastic runway construction, and with the scrub brush, sports plastic track, this method can clear the mud layer and get finer roughness. c, the flatness is poor or too smooth ground surface area without the use of large mechanical methods: blasting or electric grinder to remove surface projections, loose particles, damage pores, increased adhesion area, with a vacuum cleaner sucked sand, impurities, dirt. For more depressions, potholes ground, use plastic and fine particles arranged glue or putty filled patch. Plastic track, Camry sports, playground plastic runway Ltd. provided by the Dongguan City Camry sports facilities. Plastic track, Camry sports, playground plastic runway Dongguan City Camry Sports Facilities Engineering Co., Ltd. (www.kmtyss.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page obtain the latest information, contact: Mr. Chen.