Structural layer for playground track and materials used for track pavings

Abstract

The present invention discloses a structure layer of track of sports field and material of track surface layer. Said structure layer includes basis ground layer, ragstone layer, crushed stone layer, breeze layer, straw layer and red brick dregs-sawdust track surface layer from bottom to top. It is characterized by that the lower portion of the inner side of said circular track is equipped with a covered ditch for drainage, so that said invention has good drainage function and moisture-retention function.

Description

technical field [0001] In particular, the invention relates to a structural layer for a sports track and a material for the surface of the track. Background technique [0002] The functional area of ​​the sports field is generally a football field in the middle of the field, and a field field and a circular competition track are set around the football field. The surface layer of the circular competition track of the previous sports field is generally paved with carbon slag as the main material. The elasticity of this type of surface layer is not easy to maintain. It is loose at the beginning and is not conducive to running. It is easy to harden after being exposed to the sun and rain, which is also not conducive to running. With the use of polyurethane rubber (PU) track, it has been widely used for its bright colors and small dust. The current sports field generally adopts polyurethane rubber (PU) track surface. However, the polyurethane rubber runway has the following di...

AI Technical Summary

Problems solved by technology

However, the polyurethane rubber runway has the following disadvantages: 1. During the laying process, a large amount of asphalt and viscose need to be used. When the service life of the polyurethane rubber is reached, its waste will pollute the environment because it cannot be biodegraded

2. During the laying process, the polyurethane rubber surface layer has strict requirements on the surface of the base layer, and the cost is high

3. The polyurethane rubber runway is easy to age and has a short service life. When the polyurethane rubber runway is damaged, it will affect the use function and easily cause physical damage to athletes; and its local repair is difficult and difficult to repair

4. Polyurethane rubber runways tend to harden at low temperatures, and tend to soften and release harmful gases under the scorching sun, which not only affects the performance of the runway, but also is not conducive to human health, causing harm to athletes

Although this kind of sports field has the advantages of simple laying process, environmental protection, low cost, and easy partial repair, the surface layer is made of granular waste bricks and quartz sand, which forms uneven lines, making the surface layer hard and elastic. No, athletes are prone to injury

The sports field only uses the water absorption of calcium carbonate and calcium chloride and the drainage of the filling layer. The filling layer is easily blocked by the sand and mud on the surface layer, and its drainage performance will be affected. In rainy weather, it is easy to accumulate water and cannot be used; It will harden and harden under the sun, which will affect the use of the sports field

Images