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Last edited 13 Apr 2021
Groynes in coastal engineering (CIRIA C793), published by CIRIA in 2020, defines armourstone as: ‘Large pieces of quarry stone (see BS EN 13383-1) normally placed to form a structure such as a groyne, including both in bulk and as a protective layer to prevent erosion of the seabed and/or other slopes by current and/or wave action’.
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