What is artificial turf?

Artificial turf is a surface of synthetic fibers made to look like natural grass. It is most often used in arenas for sports that were originally or are normally played on grass. An artificial turf system consists of different layers.

Artificial turf layers-infill

1. Top layer

Artificial turf consists of a carpet. This can be tufted or woven:

Woven
Woven
Tufted
Tufted

2. Performance infill

Usually, the carpet is filled in with a layer of sand for stability and, on top of this, a layer performance infill.
This performance infill can be SBR, EPDM, TPE, cork, biodegradable granules or geotextiles,…

SBR EPDM TPE Cork Biodegradable granules Biodegradable geotextiles
SBR as performance infill for artificial turf EPDM performance infill TPE performance infill cork performance infill biodegradable granules performance infill Biodegradable geotextiles performance infill

The amount of infill depends on the system, as can be seen in the examples below. 

For a carpet of 60mm pile height without shockpad: about 3 cm performance infill
For a carpet of 60mm pile height without shockpad: about 3 cm performance infill
For a carpet of 40-50mm pile height with shockpad: 1-2 cm performance infill
For a carpet of 40-50mm pile height with shockpad: 1-2 cm performance infill

Some carpets are designed to work without infill, such as the one below. The infill is replaced by some crushed or crimped fibers:

The infill is replaced with some crushed or crimped fibers

3. Subbase

Below the carpet a draining subbase is constructed. This can be made in crushed stone, sand, lava, …

Artificial turf with draining subbase