February 10, 2021
New mix could double concrete's carbon uptake
A team lead by Mirian Velay-Lizancos, assistant professor of civil engineering, proposes adding small amounts of nanoscale titanium dioxide to the cement paste that makes up concrete. The team found that titanium dioxide, a powdery substance known best for its uses in sunscreen, paints, plastics and food preservatives, enhances concrete's natural ability to sequester carbon dioxide.