Abstract
An innovative pervious concrete containing recycled oyster shells for artificial reef structures has been developed. The new artificial reef concrete incorporating oyster shells contained higher amounts of supplementary cementitious material and sea sand instead of river sand. Investigations on homogeneity, strength characteristics, pH levels and mussel larvae (Mytilus galloprovincialis) settlement were performed to verify the effectiveness of different constituents. The proposed concrete mixes have the potential for use in artificial reef construction representing improved characteristics with regards to weight, cost, environmental sustainability, carbon footprint and attachment of shellfish larvae to the reef, enabling nature-based coastal protection solutions, or ‘living shorelines.
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