Resin Bound Gravel Hospital Gardens

Summit Landscapes resurfaced three internal gardens within the grounds of Cambridge’s Ida Darwin Hospital. Our client (the NHS) wanted resin bound gravel for the surfacing as there are no loose stones to repeatedly sweep up and it creates a clean, contemporary feel.

Summit Landscapes cut down and removed a tree from one of the gardens and laid suitable sub-bases, installed metal edging around each resin bound gravel surface. The first garden was 91m², the second was 63m² and the third was 84m².

Garden 1: Paved Area

Resin Bound Gravel 91m²
– Excavated area using a digger to a depth of 200mm and removed waste from site
– Laid geotextile weed membrane over the area to suppress weed growth
– Laid 50mm compacted limestone
– Laid 50mm base coat (SMA) porous Tarmac so Aco drains will not be required
– The resin was mixed precisely with an activator
– The resin and gravel were combined using a forced action mixer
– Resin bound mixture was then spread and regulated over the area
– Edging was installed 300mm from the building and gravel spread 5m²
– Reinstalled raised flower beds at the end of the project
– Installed new sleeper beds

Garden 2: Central Courtyard Garden

63m² two-colour Resin Bound Gravel
– Existing Tarmac surface was planed as appropriate to alter levels
– Edging was installed or adjusted as necessary to take the resin
– Fully removed any algae or fungus that was present
– The resin was mixed precisely with an activator
– A forced action mixer combined the resin and gravel
– Resin bound mixture was spread and regulated over the area using aluminium copings and spread by trowel to a uniform thickness of 12mm for pedestrian use
– The two different shades of resin bound gravel were divided using aluminium trim

Garden 3: Central Lawn

84m² Resin Bound Gravel
– Removed a shelter from site
– Excavated the area to a depth of 150mm
– Installed or adjusted edging as necessary to take the resin
– Geotextile membrane installed
– Concreted new area
– The resin was mixed precisely with activator
– A forced action mixer was used to combine the resin and gravel
– Resin bound mixture was then spread and regulated over the area

Featheredge / Closeboard Fencing

– 20m
– Clad over existing fence with weatherboard and gravel board


– Membrane flower bed
– Fill with soil – 1 bulk bag and take from beds
– Bolt down bench, chairs, table and bird table
– Fence behind shed and painted to corner
– Bolted down six chairs
– Mulch membrane and planter
– Supplied and laid one 25kg bag of 10mm gravel
– Sanded and painted bench seats
– Screwed in outdoor electrical point


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