SASR Norms & Standards Vol 2 new.indd - Sport and Recreation ...

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Tennis
• Sub-surface drains to be lined with a “Bidum” Hessian layer and fi lled in with 19 mm
crusher run stone. Sub-Surface drains to connect at the lowest point to a storm water catch
pit which should be connected to a storm water main.
• The compacted earth layer must be covered with a 125 mm thick layer of crusher run to
assist in the sub-surface drainage.
• Insert layer of 250 micron damp proof course.
• Place 150 mm thick layer of 20 (Mpa) concrete surface bed fi nished smooth with a fi nal
brushed surface.
• If the fi nal concrete surface is not smooth and level, a levelling screed has to be applied with
a minimum thickness of 15 mm.
• The concrete and screed fi nish needs to dry out for a period of twenty eight days before the
fi nal synthetic fi nish can be applied.
• The fi nal synthetic court surface is laid in two or three layers dependant on the specifi c
Manufacturers instructions.
• The court lines are applied when the surfaces have dried.
Grass court construction
The general specifi cation of the sub-surface may vary dependant on site conditions and should be in
terms with a Civil Engineers specifi cations. The general specifi cation may, however, be described as
follows:
• Remove all topsoil. Remove all topsoil and level earth platform to correct site development
levels with particular emphasis on natural sub-soil drainage.
• Rip and compact in-situ earth to 95 % modifi ed AASHTO.
• Install sub-surface drainage comprising 110 mm diameter agricultural drains placed in 450
x 600 mm deep drainage system to the perimeter of each tennis court.
• Sub-surface drains to be lined with a “Bidum” Hessian layer and fi lled in with 19 mm
crusher run stone. Sub-Surface drains to connect at the lowest point to a storm water catch
pit which should be connected to a storm water main.
• Dependant on the nature of the site, the sub-surface drains may be covered with a 100 mm
thick layer of crusher run to assist in the sub-surface drainage. The crusher run layer is
levelled, compacted and covered with a 25 mm thick layer of course river sand.
• Import, spread and level 100 mm thick layer of weed free top soil and compact lightly.
(Importation of top soil only necessary when the local top soil is not suitable)
• Fertilise soil as per chemical soil analysis and grass with either a fi ne bladed grass or
alternatively with “Golfi ng Green” grass. Seeding should be done transversely in two
applications to ensure an even spread of seed.