Artificial turf fields are increasingly becoming commonplace and are used in daily sports. A complete artificial turf sports system primarily consists of a base layer, a cushioning layer, and a turf layer. The foundation is not only one of the most crucial steps in laying artificial turf but also serves as the foundation for the entire field. Its quality directly impacts the performance and lifespan of the field. Therefore, it is crucial to prioritize the foundation of artificial turf fields. Below is a brief introduction to several common foundation types currently used in artificial turf sports fields.
1. Cement Concrete Foundation
Flatness: The flatness pass rate should be above 95%, with a tolerance of 3mm on a 5-meter ruler.
Slope: 3‰-4‰ in the center, with a turtleback drainage design. 8‰ for curves, 5‰ for straights, and 5‰ for semicircular areas. The surface should be flat, smooth, and well-drained.
Strength and Stability: The surface should be uniform and solid, free of cracks or broken edges, with straight and smooth joints. Cut into 6m x 6m sections. The subgrade must be compacted to a density greater than 95%. After a heavy roller has been used, ensure that the surface is free of loose soil and noticeable wheel marks.
Maintenance Period: The foundation maintenance period is 21 days.
Positioning: For accurate construction and marking, use firm, clear markers to mark all lines on the site.
2. Asphalt Foundation
Flatness: The flatness pass rate must be above 95%, with a tolerance of 3mm on a 3-meter ruler.
Slope: <1% horizontally, <1‰ vertically, and <4‰ in the high jump area. The surface should be flat and smooth to ensure drainage.
Strength and Stability: Asphalt materials should preferably be wax-free or low-wax. The foundation surface must be fully compacted to ensure a smooth, crack-free surface, free of rotten edges, and smooth, flat joints.
Maintenance Period: The foundation maintenance period is 28 days. 3. 37 Lime-Soil Foundation
Material Proportion: The soil material should be clayey fine-grained soil with a particle size no larger than 15mm, a sulfate content less than 0.8%, and an organic matter content less than 10%. Use hydrated lime powder of at least Grade III. After selecting qualified soil and lime, conduct a 3:7 lime-soil compaction test every 5,000 m³ (heavy compaction) to ensure construction quality control.
Moisture Content: Controlling moisture content is a critical step. It is generally advisable to maintain a moisture content between 20% and 23%, with a maximum of no more than 24%. Before construction, parameters such as the soil moisture content control range, lime-soil thickness, and tamping and rolling coefficient should be determined based on project characteristics, the designed compaction factor, soil type, and construction conditions.
Compaction Standard: Compaction Factor K ≥ 0.95
Post time: Sep-30-2025