Low-carbon building materials company Terra CO2 has raised US $82m in the first close of a Series B round to help commercialize its sustainable cement. The investment round was led by Eagle Materials, Just Climate and GenZero. The company expects a 2nd round of investors to sign on to the Series B raise by late Q1 2025. That could be additional up to $40m. Terra, based in Golden, Colorado, will use a reactor that exposes common silicate rocks to extreme heat to turn it into glassy particles (called flash vitrification), which gives them cementing qualities. It is planned to use the funds to build a first commercial plant (photo: plant animation) in Cleburne, Texas.