Carbonation - The New Face of Concrete
It’s a process known to many in the construction sector, but not well understood. It’s called ‘carbonation’ and means that concrete and mortar exposed to the air absorbs carbon dioxide (CO2) from the atmosphere. Determining how much CO2 is absorbed per a given volume of exposed concrete has been difficult, in part because concrete varies significantly according to how and where it is used. Also, although many measurement approaches have been tried, a global consensus on how to measure carbonation remains elusive.