Bio Bricks

Using a mixture of sand, bacteria and urine, scientists are working to create concrete like material that can be used to make bricks to build houses. A US designer and scientist while studying at the Edenburg College of Art had decided to look at the sustainability of material production and found that cement production was the most environmentally damaging. He there upon developed the biostone which is environmentally friendly. The method for creating biostone involves filling a mold of final required shape with sand before pumping a bacteria solution. A solution of calcium chloride, urea and nutrient broth is then pumped into the mold to produce concrete- like mixture that binds the sand together within the mold, he explained.