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July 14, 2020 02:02 am

Sustainable Engineers At Kenoteq Are Reinventing the Brick

Engineers from Kenoteq are working to reinvent the humble clay-fired brick, which has remained largely the same for thousands of years and causes significant environmental problems. Not only are the majority of brick kilns required to produce bricks heated by fossil fuels, but the bricks that are made must be transported to construction sites, generating more carbon emissions. CNN reports: [Gabriela Medero, a professor of Geotechnical and Geoenvironmental Engineering at Scotland's Heriot-Watt University] joined forces with fellow engineer Sam Chapman and founded Kenoteq in 2009. The company's signature product is the K-Briq. Made from more than 90% construction waste, Medero says the K-Briq -- which does not need to be fired in a kiln -- produces less than a tenth of the carbon emissions of conventional bricks. With the company testing new machinery to start scaling up production, Medero hopes her bricks will help to build a more sustainable world. To make it, construction and demolition waste including bricks, gravel, sand and plasterboard is crushed and mixed with water and a binder. The bricks are then pressed in customized molds. Tinted with recycled pigments, they can be made in any color. [...] Kenoteq currently operates one workshop in Edinburgh, which can produce three million K-Briqs a year. Medero is looking at scaling up -- but it's hard to create a revolution in construction. Over the next 18 months, Medero plans to get K-Briq machinery on-site at recycling plants. This will increase production while reducing transport-related emissions, she says, because trucks can collect K-Briqs when they drop off construction waste. "We need to have ways of building sustainably, with affordable, good quality materials that will last."

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