Hand dredging net1/4/2024 ![]() Hanson’s marine aggregates are supplied to the UK, France, The Netherlands, and Belgium and are primarily used in ready-mixed concrete for projects such as Thames Tideway, Crossrail, and in prestigious high-rise buildings, but also in the production of concrete blocks and as bagged aggregates. In areas around London and the South East, land-based reserves are scarce and marine-dredged sand and gravel play an important role. Hanson’s marine resources manager, Dr Nigel Griffiths, reveals some current themes and unusual finds made through the company’s operations They own a purpose-built fleet of four marine aggregate dredgers (MADs), including their new vessel, Hanson Thames, which began operating earlier this year. Hanson Aggregates Marine, part of Hanson UK, are one of the key players in the UK and continental market, supplying around 5 million tonnes of material each year. Marine dredging plays an important part in the supply of sand and gravel to the construction sector and its role is set to grow as land-based supply is limited. ![]() ![]() First published in the March 2022 issue of Quarry Management ![]()
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