Marinecrete Mattresses ("Marine Matts")

Marinecrete mattresses (Marine Matts) are pre-cast eco-friendly low/negative carbon footprint concrete structures that protect man made subsea assets whilst enhancing the marine environment due to their cavities, pH and surface texture. They are certified non-toxic to the marine environment, contain no Portland cement, zero plastics and are made with >95% recycled materials supporting the circular economy.   Standard Marine Matts measure 6mx3m, are 150mm, 300mm or 450mm deep and can be deployed using conventional lifting frames. They can be part of the energy transition to carbon net zero projects and support green recycle, repurpose, reuse strategies. Their use supports UN goal SDG-14 life below water and marine net gain (MNG) objectives by increasing biodiversity and species abundance.

Marine Matts are designed to become the defacto standard for protecting cables, pipelines and monopiles due to their massive carbon footprint saving, the potential life cycle cost saving (if approved to be left in situ) and nature inclusive design benefits.   They are recoverable so they can be moved and reused but designed with the potential to be approved by regulators to be left in situ forever due to their positive marine impact.  Every subsea and coastal defence project can now leave a positive marine legacy to help re-wild the oceans and provide hard substrate to regenerate ocean health.