Pedestrian Paver HydroSTON 50
Suitable for footpaths, walkways, plazas, patios, courtyards, tree and pool surrounds.
Where to use
- Pedestrian only pavements – footpaths, patios, courtyards, walkways, tree surrounds
- Dimensionally exact
- Joints not required
- Minimal substructure
- Flag and Block compatible – can be combined in interesting patterns/designs
Where not to use
- Pavements used by vehicles, including street cleaning machines
HydroSTON 50 Block (50 x 200 x 100mm), HydroSTON 50 Flag (50 x 300 x 300mm) and extra large format HydroSTON 50 Flag XL (50 x 400 x 400mm pavers) are intended for pedestrian only purposes and are not designed to carry vehicles.
Standard colours are Light Grey and Charcoal. Other colours can be manufactured to order during scheduled production runs.
HydroCon endeavours to maintain good stocks of standard colours to meet normal customer requirements.
Non-standard colours can be manufactured to order during scheduled production runs of standard colours.
Early lead time advice is required for the manufacture of non-standard colours and customers need to be consulted on colour selection.
Colours shown are a guide only and may vary. Colour samples are available on request.
Gap joints are generally not required with HydroSTON pavers, which are intended for pedestrian only purposes. Joints are not required because the loading is minimal and HydroSTON pavers are dimensionally exact.
Relevant AS/NZS Tests
Masonry units and segmental pavers and flags
- 4456.4 2003 Determining compressive strength of masonry units
- 4456.5 2003 Determining the breaking load of segmental pavers and flags
- 4456.6 2003 Determining potential to efflorescence
- 4456.16 2003 Determining permeability to water**
- 4486 Appendix A2004 Slip resistance of new pedestrian surfaces
** HydroSTON previously tested under AS/NZS 4456.16 and QMR Q304:2002 Determination of Permeability of Asphalt (QMR: Queensland Main Roads). Currently tested under NSW Roads & Maritime Services RTA T377 – Test method for water permeability of no fines concrete.
Pavement and substructure design is relatively straightforward for permeable subgrades and where pavements are intended for pedestrian or light vehicle use. Vehicle pavements however need to be designed not only for permeability but also stability. Substructures for non-residential and high traffic applications should be specified by qualified road or pavement engineers.
Experience indicates that periodic maintenance through brushing, vacuuming or blowing plays a significant role in sustaining open pore structure and good infiltration capacities of HydroSTON pavements.
Periodic cleaning assists in keeping surface voids free of sediment, organic matter and other debris, which if compacted will reduce infiltration performance. Since HydroSTON pavers retain the majority of contaminants close to the surface, cleaning can be carried out either manually with a stiff bristle broom or increasing available wet suction cleaning equipment. Large area pavements can be cleaned mechanically with street cleaning vehicles having sweeping and suction functions. Frequency of cleaning will depend on site conditions ie degree of contamination.
Commitment to an inspection and maintenance schedule (see below) should ensure that HydroSTON pavements continue to perform well for many years after installation. Life expectancy is best expressed in terms of infiltration performance, which in turn is dependent on the maintenance regime applied. Cleaning of poorly maintained pavements with industrial wet suction equipment can restore infiltration capacities to close to original capacities. Ability to restore the infiltration capacity of HydroSTON pavements through in-situ cleaning is a positive and distinguishing feature of HydroSTON pavers.