PermaStone ASTM #9 Permeable Drainage Stone meets the requirements for permeable paver joint units. The calibrated gradation obtained from the fractured high-strength granite makes it the ideal product for the bedding course & jointing material to collect surface water run-off and help stabilize interlocking paver surfaces.
ASTM #9 Permeable Stone
Ideal For:
- Residential and commercial traffic
- Permeable paver joints and bedding material for pavers
- Concrete paver and wet cast products
- Driveways, parking lots, patios & walkways and more
- Bedding and jointing material
- Foundation material under Gator Base
Features:
- Graded to meet ASTM No. 9
- Reduction of stormwater runoff
The minimum slope of the soil subgrade should be 0.5%. Actual slope of soil subgrade will depend on the drainage design and exfiltration type. All drain pipes, observation wells, overflow pipes, geotextile and impermeable liner (if applicable) should be in place per the drawings prior to or during placement of the subbase and base, depending on their location. Care must be taken not to damage drain pipes during compaction and paving. No mud or sediment can be left on the base or bedding aggregates. If they are contaminated, they must be removed and replaced with clean materials.