What materials are used in the rubber track in the stadium?
Plastic runway construction on asphalt or cement foundation, the basic approach and road construction is about the same. The basic surface smoothness requirement is higher, in order to guarantee the plastic surface thickness uniformity, the elasticity is even, the foundation quality request is as follows:1, slope: horizontal <1% (bend 8 per thousand, straight way 5 per thousand, semicircle area 5 per thousand), vertical <1 per thousand, high jump area <0.4%, surface should be flat and smooth, drainage smooth.2, flatness: flatness pass rate of 95% or more, 3 meters ruler error 3mm.3, positioning: for accurate construction and painting lines, the use of strong and distinct markers to mark the runway site of the four semicircle, tangent point and two centers.4. Drainage: drainage system must be discharged two hours after heavy rain. In the frozen area, a buffer layer of geotextile should be added between the asphalt and macadam. The foundation along the drain trench shall be specially treated against water.
Strength and stability: the foundation should have a certain strength and stability, surface uniform and solid, no cracks, no rotten edges, seams straight and smooth. Cushion compaction, compaction degree is greater than 95%, in medium rolling machine pressure after no significant Wheelpath, regolith loose, wave phenomenon.
The plastic runway, also known as all-weather track track and field, the polyurethane prepolymer, mixed polyether, tire rubber, EPDM rubber particle or PU particles, pigments, additives and fillers. The plastic runway with the formation of characteristics of good, high compressive strength, hardness and elasticity appropriate, stable physical properties, speed and skill help athletes the play, effectively improve athletic performance, reduce the rate of falls. The plastic runway is composed of polyurethane rubber and other materials, has a certain flexibility and color, has a certain anti UV ability and ageing resistance force is internationally recognized best all-weather outdoor sports ground floor materials.
