How to divide the quality of plastic track

Everyday we go to the gymnasium. Most of the playgrounds are plastic tracks. This kind of track is more comfortable and clean when exercising. However, there are relevant regulations on the comfort and quality of the runway. How much do you know?

1. Inclination: Horizontal <1% (turn 8%, straight 5%, semi-circular zone 5%), vertical <1%, long jump zone is less than 0.4%, the surface should be smooth and clean, and the drainage pipe should be unobstructed.

2. Flatness: The flatness compliance rate is above 95%, and the data error of the 3-meter scale is not more than 3 mm.

3. Precise positioning: In order to be necessary for precise engineering construction and marking, the four semi-circular break points and two center points of the runway should be marked firmly and uniquely.

4. Drainage pipeline: The drainage equipment must be cleared of water after two hours of heavy rain. In the frozen area, it is best to add a non-woven geotextile buffer layer between the bitumen layer and the gravel layer, and a unique moisture-proof solution should be made along the foundation of the sewage trench.

5. Compressive strength and reliability: The foundation should have a certain degree of compressive strength and reliability, the surface should be well-proportioned, firm, seamless, without rotten edges, and the joints should be vertical and clean. The foundation cushion is compacted with a degree of compaction of more than 95%. After being compacted by a small and medium-sized roller compactor, there are no obvious tire marks, loose ash and other conditions.

The above is the main content of how to divide the quality of the plastic runway. For the construction party, a good quality runway can be used for a longer period of time and reduce costs.