What are the types of artificial grass field foundations?

Artificial turf fields have appeared more and more and are used in people’s daily sports life. A complete artificial turf sports system is mainly composed of three parts: base layer, buffer layer and turf layer. The ground foundation is not only one of the most important links in the laying of the entire artificial turf, but also the carrier of the entire sports ground. The quality of the ground directly affects the performance and service life of the entire artificial turf sports ground. Therefore, we must pay attention to artificial turf. Infrastructure for lawn fields. The following briefly introduces some basic types that are currently used in artificial turf sports venues.

Cement concrete foundation

Flatness: The qualified rate of flatness is above 95%, and the error of 5-meter ruler is 3mm.

Slope: 3‰-4‰ of the central site, turtle-back drainage design. The curve should be 8‰, the straight road should be 5‰, and the semi-circular area should be 5‰. The surface should be flat, smooth and good drainage.

Strength and stability: The surface is uniform and firm without cracks, no rotten edges, and the seams are straight and smooth. Cut into pieces with a size of 6m × 6m. The cushion layer is compacted, and the density is greater than 95%. After being pressed by a heavy-duty roller compactor, it is ensured that the surface layer is free from loose floating soil and obvious wheel marks.

Waterproof layer: New PVC thickened water-proof film is used, the overlap should be 20cm, and the margin size should be greater than 15cm.

Warranty Period: The basic warranty period is 21 days.

Positioning: For accurate construction and line drawing needs, use firm and distinct markers to mark the lines of the site.

Asphalt foundation

Flatness: The qualified rate of flatness is above 95%, and the error of 3-meter ruler is 3mm.

Slope: horizontal <1%, vertical <1‰, high jumping area <4‰, the surface should be flat and smooth to ensure drainage.

Strength and stability: Asphalt materials should preferably use materials with no or little wax content. The base surface must be fully compacted to ensure smoothness without cracks, accumulation of rotten edges, and smooth and smooth joints.

Warranty Period: Basic Warranty Period 28 days.

Notoginseng lime soil foundation

Material ratio: The soil material should be cohesive fine-grained soil with a particle size of not more than 15mm, the sulfate content should be less than 0.8%, the organic matter content should be less than 10%, and the lime should be slaked lime powder with a grade of not less than III. After selecting qualified soil materials and lime, do a 3:7 lime soil compaction test, and the inspection quantity is inspected once every 5000m³ (heavy compaction), so as to control the construction quality.

Water content: The control of water content is a key link. Generally, the water content should be controlled at 20% to 23%, and the maximum should not exceed 24%. Before construction, parameters such as the control range of soil moisture content, the thickness of ash-laying soil, and the ramming and rolling variables should be reasonably determined according to the project characteristics, design compaction coefficient, soil types, and construction conditions.

Compaction standard: compaction coefficient K≥0.95.

The above foundations are suitable for the installation of artificial grass. Choosing the foundation for the appropriate project will help you complete the installation of the artificial grass sports field system.

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