SuDS Permeable Paving, Sudsgrid 40, Heatherwood Hospital, Ascot, UK

The newly redeveloped Heatherwood Hospital employs a total of 4,200m² of Sudsgrid 40 cellular pavers, filled with free-draining angular aggregate to provide 450 new parking spaces, delineated by yellow markers. ABG’s sub-base design utilises the unique Abgrid geogrid to reduce the thickness of DoT Type 3 stone required for structural stability, and through the use of the ABG Terrex NW non-woven geotextile layer, an additional stage of treatment was provided for the infiltrating water.

ABG’s permeable paving limits surface water run-off and minimises the risk of localised flooding, alongside, providing a shallower construction profile. Resulting in reductions in site excavation, off-site tipping, DoT Type 3 stone deliveries and the associated costs.