GRASSCRETE® formers type GC..........*, ............*mm deep laid on a consolidated sub-base with a 10/20mm blinding layer of sand. Steel mesh reinforcement to BS4483 reference ..........*, weighing ..........*kg/m². Concrete 30MN/m² at 28 days with air entrainment of 3%. 10mm maximum aggregate and a .........*mm slump placed around formers and mesh and levelled to tops of formers. After 48 hours melt exposed tops of formers and fill with soil. Following settlement sow GRASSMIX No.......* at a rate of 50g/m² and top up with fine friable topsoil, apply fertiliser as necessary.
Expansion joints shall be incorporated at 10 x 10m centres and shall consist of 25mm wide pre-soaked softwood filler (for GC3, GC1, GC2 and GC2sc).
or
Expansion joints shall be incorporated at 10 x 10m centres and shall consist of 25mm wide foam board filler with 20mm diameter x 300mm long sawn dowels at 400mm centres with cap and debond to one side. Joint shall be sealed with cold applied sealant (for GC2sc - load transference slabs).
* Refer to data in the Grasscrete types page and the Specification Guide table below to fill in the blanks
