Biochar Concrete – Whale on the Wharf

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The Whale on the Wharf is a four-storey breaching whale sculpture installed at this project.

This transformed ocean plastic into art to raise awareness about marine pollution. Beyond its symbolic meaning, it integrates cutting-edge sustainable engineering notably the use of biochar concrete, an emerging low-carbon construction material.

Biochar stores up to 85% biogenic carbon, acting as a carbon sink that prevents CO2 emissions from decomposing biomass. Each cubic meter of concrete containing 50 kg of biochar can remove up to 150 kg CO2 equivalent from the atmosphere.

The process converts waste coffee grounds and wood waste into a valuable construction resource. This reduces landfill waste and the carbon footprint associated with cement production. Maintains mechanical performance comparable to traditional concrete. Demonstrates improved freeze-thaw resistance and reduced scaling, ensuring long-term structural integrity. Complements other project sustainability features, such as reused steel sections, which together achieve a 56% reduction in embodied carbon.

To find out more, click the link below.

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Footer Reference

Monitor Report. Canary Wharf Contractors Ltd. London. October 2025.

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About this entry

Published 5 February 2026
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Categories
Carbon reduction, Conserve of resources, Lower embodied carbon content materials,

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Very Large,

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Innovative,

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Jack Endean
Partnerships and Innovations Manager

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