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Lean Sand Asphalt
Open Stone Asphalt / Mattresses
Asphaltic Mastic / Mastic Grout
Dense Stone Asphalt
Dense Asphaltic Concrete
Structure and Properties
Thin layer of 3-D geotextile filled with a ‘mini’ Open Stone Asphalt mixture.
Open structure allows plants to grow through – vegetation cover is rapid and improves erosion resistance.
Withstands waves up to ~0.3m and currents up to ~ 2.5 m/s.
Prefabricated in rolls up to 4.8m wide and up to 25 metres long
Can be placed above or below water
Lightweight erosion protection for river training and lakes / lagoons.
Used in environmentally sensitive areas as vegetation soon grows through it.