SASR Norms & Standards Vol 2 new.indd - Sport and Recreation ...
SASR Norms & Standards Vol 2 new.indd - Sport and Recreation ...
SASR Norms & Standards Vol 2 new.indd - Sport and Recreation ...
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51<br />
Hockey<br />
• The sub-surface drainage system is to be connected to a storm water system to ensure<br />
proper drainage.<br />
• A 250 micron damp proof layer is to be installed below a 125 mm thick (20 Mega Pascal<br />
design strength) concrete surface bed fi nished smooth to ensure proper adhesion.<br />
• Sealers <strong>and</strong> curing agents should not be used since these may affect the adhesion of the<br />
artifi cial grass surface.<br />
• All concrete surfaces need to be dry <strong>and</strong> dust free prior to the placement of the track<br />
surface.<br />
• A 25 mm thick cement levelling screed needs to be placed to true <strong>and</strong> smooth levels.<br />
• Any level defects are to be fi lled in to ensure a smooth <strong>and</strong> even fi nish. Any projections will<br />
damage the artifi cial grass carpet when subjected to use.<br />
Typical Section through Artifi cial grass<br />
Fibres are coated with silicone Curly fi bres keep the straight ones upright<br />
Layer of rubber granules<br />
Modern artifi cial grass<br />
Exp<strong>and</strong>ed polypropylene base