Download illustration as pdf
ITEM RECOMMENDATIONS
Permeable pavers HydroSTON vehicle pavers (HydroSTON 80) supplied by HydroCon.
Paving joints HydroCon recommends that HydroSTON 80 be laid in herringbone pattern to maximise interlocking. Pavers can be butted together without gap joints.
Bedding 2-5 mm graded or 5 mm single size low fines crushed rock preferably basalt or equivalent compacted to 30 mm depth. Alternative bedding material: minus 4.75 mm washed recycled glass (GlassSand).
Geotextile Nonwoven geotextile hydraulic conductivity min. 3600 mm/hr eg Geofirma 200B Bidim A24 or equiv.
Base course 5-20 mm low fines crushed rock preferably basalt or equivalent compacted in layers to 150 mm depth (100 mm min.).
Alternative base course material for easier compaction and greater stability: 0-2 mm washed sand (30-50% sand <3-5% passing 0.075 mm) / 2-20 mm aggregate (50-70 % low fines aggregate).
Water harvesting or external discharge applications
Sub-base (if required for increased water storage) 20-40 mm low fines crushed rock.
Underdrain DN90 slotted PVC pipe eg IPLEX WPS090SL.
Liner 0.75 mm linear low density polyethylene (LLDPE) 1.5 mm high density polyethylene (HDPE). Check with supplier on appropriate product for application.
Liner protector Woven geotextile. Check with supplier on appropriate product for application.