Earth May Have Been a 'Water World' 3 Billion Years Ago, Scientists Find

Engineers from Kenoteq are working to reinvent the common-or-garden clay-fired brick, which has remained largely the identical for 1000’s of years and causes vital environmental issues. Not solely are nearly all of brick kilns required to supply bricks heated by fossil fuels, however the bricks which might be made have to be transported to development websites, producing extra carbon emissions. CNN stories: [Gabriela Medero, a professor of Geotechnical and Geoenvironmental Engineering at Scotland’s Heriot-Watt University] joined forces with fellow engineer Sam Chapman and based Kenoteq in 2009. The corporate’s signature product is the Okay-Briq. Produced from greater than 90% development waste, Medero says the Okay-Briq — which doesn’t should be fired in a kiln — produces lower than a tenth of the carbon emissions of typical bricks. With the corporate testing new equipment to begin scaling up manufacturing, Medero hopes her bricks will assist to construct a extra sustainable world.

To make it, development and demolition waste together with bricks, gravel, sand and plasterboard is crushed and combined with water and a binder. The bricks are then pressed in personalized molds. Tinted with recycled pigments, they are often made in any coloration. […] Kenoteq presently operates one workshop in Edinburgh, which might produce three million Okay-Briqs a yr. Medero is taking a look at scaling up — but it surely’s arduous to create a revolution in development. Over the following 18 months, Medero plans to get Okay-Briq equipment on-site at recycling crops. This may enhance manufacturing whereas decreasing transport-related emissions, she says, as a result of vans can acquire Okay-Briqs after they drop off development waste. “We have to have methods of constructing sustainably, with reasonably priced, good high quality supplies that may final.”

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