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Bowling Green

Synthetic Turf

NAME: Tournament 15mm Knit de Knit (non-directional)
APPLICATION: BOWLING GREEN, SURFACES
COLOUR: GREEN PILE
DENIER: 5,700 Knit de Knit
GUAGE: 4MM
PILE HEIGHT: 15MM
STITCH RATE: 18 PER 10CM
TUFTS PER UNIT AREA: 45,000
YARN WEIGHT: 1000 GM/SQ. M
UNBACKED WEIGHT: 800 GM/SQ. M
TOTAL PRODUCT WEIGHT: 1990 GSM
PRIMARY BACKING: Woven U.V. STAB H. D. POLYPROPYLENE
SECONDARY BACKING: H.D CARBOXYLATED S.B. CO-POLYMER

Base Construction
a) The base shall consist of a 100mm layer of bound, granular material, designed to have a correct void content when compacted provide free draining characteristics, coupled with adequate strength, stability and truth to surface line and level for the required purpose.

b) The base shall consist of a 100mm 25mPA concrete slab placed on suitably prepared and compacted subgrade, on a 200mu polyethylene membrane barrier. The slab shall incorporate F63 mesh steel reinforcing at a uniform level within the matrix. The slab shall be suitably designed to reflect the dimensions of the surface area.

Drainage
In the case of 2 a) above, drainage in the in a herring-bone pattern will be installed in the subgrade prior to spreading of the granular base. The drainage will comprise plastic cored, geotextile wrapped material, trenched into the subgrade, and of sufficient capacity to relieve surface drainage requirements.

Turf
The synthetic turf is laid with permanently bonded invisible joints, secured around the perimeter

Sand
The contractor shall sand fill the synthetic surface to provide a true running green when played from any direction The sand infill shall be graded, kiln-dried, washed sand.

Sand Fill
It is important that the sand is infilled in controlled layers and that the pile is brushed so that there is no lean or direction to it. The turf shall run at 13 – 15 seconds once the green has run in. Bank & Ditch The bank shall be constructed of Besser type blocks, approximately 250mm above the surface of the green, incorporating the ditch at approximately 100mm below the green.

Turf to Bank
As called for in the tender specification, the bottom of the ditch, the face of the bank and a one meter strip around the green shall be surfaced with short pile Wimbledon turf. The Contractor shall allow for lane numbering holders along the lip of the bank.