Artificial turf stadium basic construction requirements

The basis of VIVATURF artificial turf can be divided into the basis of three materials: cement concrete foundation, asphalt base and thirty-seven lime soil foundation.

Option One. Cement concrete foundation
Flatness: flatness pass rate above 95%, 5 m ruler error 3mm.
Slope: Center venue 3 ‰ -4 ‰ Turtle-drainage design. 8 ‰ corners, straights 5 ‰, the semicircle area 5 ‰, should be flat, smooth surface to ensure drainage.
Strength and stability:
Uniform solid surface, no cracks, no bad side, straight and smooth seams, 6000mm x 6000mm about cuts as well. Cushion compaction, density of greater than 95%, after the pressure of the medium-sized mill wheel tracking no significant surface dust loose, wave phenomena such.
4. Impermeable layer: new PVC thick impermeable film, lap joints should be days edge margin greater than 200mm, 150mm.
5. Maintenance period: the basis of the maintenance period of 21 days.
6. Positioning: the need for accurate construction and painting line, applied firmly distinctive marker lines mark the site.

Option II, asphalt base
Flatness: the foundation should have a certain amount of strength and stability, the cracks in the foundation can not and heterogeneous freezing due to frozen due to the flatness of the pass rate is more than 95%, 3 m straightedge error 3mm.
Slope: horizontal <1%, longitudinal <1 ‰, high jump area <4 ‰, the surface should be flat and smooth to ensure drainage.
Strength and stability:
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 free of cracks, rotten side heap squeeze, no Ma surface is smooth, smooth seams. Asphalt concrete surface gravel diameter 2-5mm, the oil content of 5.8-6.4%, bonding layer of gravel particle size of 6-9mm, containing 4.6-5.8%, no feeble from the skin, no surface dust loose waves and other phenomena.
Drainage: the drainage system in the two hours after heavy rain must be drained hydrocephalus.
5. Maintenance period: the basis of the maintenance period of 28 days.