MagRoc uses a board manufactured from magnesium oxide mineral cement.
Magnesium oxide (Mgo) is an incredibly plentiful naturally occurring mineral. While its base component, Magnesium metal, is uncommon in its pure state, its compounds (including magnesium oxide) are the 8th most common minerals in the earth’s crust. There are no issues with running out of MgO.
Magnesium oxide is totally inert and is used in a variety of applications from the construction industry through to water purification and as a food additive. It is also used in manufacture of medication, is a primary component of many antacids and is available as a supplement.
Historically magnesium oxide has primary been used in the manufacture of bricks for kilns due to its incredible fire and heat resistance however it has also been used in cements for construction for over 1000 years. The Romans made use of it as a mortar and one of the most famous bridges in the world, the Brooklyn Bridge, is held together with magnesium oxide.
MgO based cements have the potential to significantly reduce the global CO2 output if they were adopted as a replacement to traditional portland cement. As it stands today the cement industry accounts for 5-20% of worldwide greenhouse gas emissions, a staggering figure. This is primarily due to the fact that the lime used in portland cement must be heated to 1400°C before it can be used. In the manufacture of MgO based cement the required temperature is closer to 700°C meaning the energy requirements are significantly less. Some estimate that the production of MgO cement emits just 40% of the CO2 of portland cement and that a full transition could prevent 1.5 billion tons of CO2 being released into the atmosphere every year!
Magnesium oxide is a non-toxic naturally occurring mineral that has a variety of uses – from construction materials through to natural health supplements.