Black basalt aggregate.
A special blend of 6 mm down aggregate, formed from a naturally occurring basalt deposit. This dark grey product when moist will compact to give a sound surface ideal for numerous applications.
Topsport Olisett 0/6 mm Hard Porous Surfacing (Black)
|Standard product features|
Particle size distribution:
The foundation should be 150 mm thick, constructed to accurate levels and brought to the required elevation using a well-consolidated porous crushed rock. A suitable material for this purpose would be a granular subbase or 40 mm crusher run compacted to form a smooth surface on which to lay the Olisett.
The Olisett surface should be spread on top of the foundation either by machine or by hand in one course to a depth of approximately 50 mm to give compacted depth of 40 mm. If laid by hand, best results are achieved by using accurately fixed screeds and a straight edge.