A New Form of an Old Material
Scientists at a British concrete manufacturer, the London-based Novacem, claim to have developed a new form of concrete that effectively absorbs large amounts of carbon dioxide as it hardens. Novacem's new version of concrete, uses a different raw material, magnesium sulphate, which requires much less heating. Novacem claim that each tonne of cement can absorb up to 0.6 tonnes of CO2. This is opposed to figures that claim that each tonne of old style cement emits about 0.4 tonnes of CO2.
at Monday, April 20, 2009