US: Silicate-based supplementary cementitious material (SCM) developer Terra CO2 raised US$46m in its first funding round, it announced on 12 July 2022. Fast Company News has reported that climate innovation venture capital company Breakthrough Energy Ventures led the round.
Terra CO2's SCM consists of silicate-containing igneous rocks and sediments, which are ground and heated to form glass spheres. The company says that these behave in a similar way to natural pozzolan and fly ash. Terra CO2 says that its product offers a 70% CO2 emissions reduction compared to ordinary Portland cement (OPC).