Thursday, 1 November 2018

opus latericium

Material science students in Cape Town have developed a process that forms a durable, pliable building substance out of urea, sand and a strain of bacteria that metabolises urine into calcium carbonate that cements the loose sand to fit a given mould.
Not only would construction sites draw in and sequester atmospheric carbon during the growing phase, reinforcing the sands with limestone matrices, the reaction that produces the bricks, pillars and cobblestones happens at ambient temperature and doesn’t need to be fired in a kiln—another potentially huge benefit as the cement and concrete industry contributes a huge volume of greenhouse gases.