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Digital material passports - British Terrazzo

Sustainability By Alex Mar Morales, Senior Consultant, Sustainability – 31 October 2023

Collage of photos showing terrazzo and the British countryside

Authors

Head and shoulders shot of Alex against a marble wall wearing glasses and a jumper

Alex Mar Morales

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Gilles in a white shirt in front of a white marble effect wall

Gilles Alvarenga

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This is part of the 'Unlocking sustainable designs through digital material passports' exhibited at The Summit — BE-ST Fest '23.

Maconda source local aggregates by upcycling construction waste and binding it with cement to create Ethical Stone Terrazzo.

Each of these terrazzo’s tells a story about a place in Britain. As opposed to Portland Cement (which is traditionally used to bind aggregates together), a low-carbon alternative is used. Alkali-Activated Cementitious Material (AACM), a by-product of the steel industry is used instead which reduces the product’s reliance on Portland Cement by 50%.

All materials are sourced within the UK alongside manufacturing the tiles in Manchester. Therefore, every effort has been made to minimise the carbon footprint of the tiles by lowering transport emissions.

DIGITAL MATERIAL PASSPORT

Product Name: British Terrazzo

Product Site: British Terrazzo - Maconda (macondasolutions.com)

Supplier: Maconda Materials

Material Origin

  • Raw Material Sourced:
    United Kingdom
  • Manufacture Site:
    Manchester, United Kingdom (Main Factory)
  • Biogenic Content (i.e. natural material content/sequestered carbon info)
    50%
  • Reused Content
    50% (Made from building demolition waste)

Embodied Carbon

  • Embodied Carbon Value:
    Product EPD not available until end of 2023

Circularity, to cover aspects like:

  • Takeback schemes:
    Ethical Stone as part of Maconda can take back for repurpose

  • Reuse Potential:
    High reuse and repurpose potential

  • Warranties:
    Not Specified

Health & Wellbeing

  • Material Emissions:
    Minimal VOC Emissions (Self-declared)
  • Material Content:
    Minimal VOC Content (Self-declared)
  • Ingredient Transparency:
    Disclosed ingredients: Alkali-Activated cement binder, recycled aggregate, recycled marble, various construction material waste (metal, concrete, stone, bricks and timber) (Self-declared)
  • Hazardous Materials:
    None found (Self-declared)

Certifications

  • Certified by Stone Federation of Great Britain

What is a digital material passport?

A material passport is a digital document listing all the materials that are included in a product or construction during its life cycle in order to facilitate circularity decisions in supply chain management at the end of the building life.

At Cundall, we want to create a passport for materials and products that will also provide information before its use, so designers and contractors have a better understanding of the materials and their impact on the embodied carbon and health well-being of a project, facilitating the inclusion of the best low carbon and healthy materials that align with their design.

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