School playground, rubber basketball courts, artificial turf

PU plastic material properties:
Weather resistance: any season and temperature difference are to maintain a high standard of quality, the rain can immediately use to increase the use of time and improve the site usage: elastic: with an appropriate degree of flexibility, can reduce the consumption of physical strength, enhance competition results: shock absorbent : Moderate absorb foot impact, reduce sports injuries, to meet the long-term training and competition requirements: weather resistance: not fade due to ultraviolet radiation, ozone, wind and rain, and sulfite, gas pollution, chalking or softening, and to maintain its long-term bright colors: wear: wear loss is small, to meet the need of long-term high frequency.

PU basketball court on the quality requirements of the asphalt base
Underlying surface flatness requirements, to ensure that the plastic surface layer thickness, elastic uniform, without wasting the plastic surface layer material. Regardless of the basis, should have a certain degree of strength and stability. The foundation can not cracks due to frozen due to uneven frost heave. The foundation should have a certain flatness: pass rate above 95%, 3 m ruler error 3MM. Slope: horizontal <1%, longitudinal <1 ‰, the high jump District <4 ‰, the surface should be flat, smooth, and ensure drainage. The best asphalt base does not contain wax or asphalt materials containing wax few, must be fully compacted asphalt mixture. 

Surface uniformly solid, smooth and no cracks, no bad side push, lint-free surface, smooth and smooth seams. Asphalt concrete surface layer of gravel particle size of 2-5MM, oil content of 5.8-6.4%, the bonding layer of gravel particle artificial grass size of 6-9MM oil content of 4.6-5.8%, the softening point of 82-104 ° C. Compaction density shall not be less than 95%, after the pressure of the medium-sized rolling machine, significantly wheel tracks, no feeble peeling, no surface dust loose, wave phenomena such. Foundation necessary aquifuge. Drainage Party requirements necessary discharged two hours after a heavy rain. Therefore need to consider the drainage system.

The quality of the cement-based requirements
Higher requirements on the basis of surface flatness, to ensure consistent inverse glue surface layer thickness, elasticity uniform. Flatness pass rate above 95%, and 5 m ruler error 3MM, slope: horizontal 8 ‰, vertical 5 ‰, the semicircle area 5 ‰, the surface should be flat, smooth, to ensure drainage. 

The foundation should have a certain strength and stability. Surface is uniformly solid, no cracks, no bad side pockmarked face, seams straight and smooth, about 6000mm × 6000mm cuts as well. Cushion compaction, density of greater than 95%, after the pressure of the medium-sized rolling machine, no significant round track, no surface dust loose waves and other phenomena. 

Cement foundation necessary aquifuge, the new PVC aquifuge thickened impermeable film, the junction should be greater than 300mm edge margin greater than 150mm. The basis of the maintenance period of 21 days