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Requirements for concrete base of plastic track and field runway
Sep 30, 2018

1. The asphalt concrete base of plastic track and field runway should be flat, and the cracks should not exceed 3 mm by 3-meter long ruler.

2. The construction requirements of asphalt concrete base of plastic track and field runway should be constructed according to the current highway construction and acceptance criteria, and the grade of construction highway should be grade A.

3. The C10 fine stone concrete layer is stirred mechanically on the spot, vibrated mechanically, and leveled with aluminum alloy ruler by roller compaction and leveling repeatedly on the concrete surface layer, rubbed with wooden washboard and pressed with iron plate. The levelness must be less than 5 mm by 3 m ruler, and there is no defect such as turning sand and cracking every 6 m. Spacing is divided into lattice joints, 20-30m expansion joints, joints poured construction paste construction method refers to the current highway construction and acceptance standards.

4. Connecting sand and stone cushion, layered backfilling and ramming, each layer backfilling thickness is not more than 300 MM, absolutely not allow backfilling rock and affect its compactness. The surface is required to be smooth and dense, on-site sampling and inspection.

Five. Products and construction requirements of synthetic plastic runway surface layer:

1. The rubber materials used in the plastic track and field are required to hold the products of the "Plastic Runway Qualification Certificate" issued by the Sports Facilities Standard Management Office of the State Sports Administration.

2, the construction of plastic track and field runway adopts cast in place hot construction, and it is required to adhere firmly to the asphalt runway base.

3. The construction thickness of plastic track and field runway is 13 mm thick in track and field area, 18 mm thick in high jump and long jump area, 18 mm thick in front and rear of 3000 meters obstacle pool area, and 9 mm thick in non-competition area.