substrate element for use in an artificial grass field, substrate for use in an artificial grass field, artificial grass field, and method of manufacturing an artificial grass substrate with a shock absorption value of at least 50 and an energy refund value of less than 40

摘要

A substrate element for use in an artificial grass pitch, in particular an artificial grass playing field, in which aside of the substrate element comprises protuberances evenly distributed across its surface and extending therefrom. The substrate element has a hardness of 30-70 Sh(A) and may be provided with artificial grass fibres.