 ISO standard for quality (ISO 3262)

Patents are pending on the use of magnesium silicate as a cement substitute.Its production requirements are less energy-intensive than ordinary Portland cement (at a heating requirement of around 650 °C for talc compared to 1500 °C for limestone to produce Portland cement), while it absorbs far more carbon dioxide as it hardens.This results in a negative carbon footprint overall, as the cement substitute removes 0.6 tonnes of CO2 per tonne used.