Sublime Systems uses an electrochemical process to produce ASTM C1157-compliant cement at ambient temperature, avoiding fossil-fuel kilns and limestone waste. The process reduces energy intensity by 30%-40% and eliminates emissions of CO2, CO, NOx, SOx, and mercury. Sublime Cement is a durable, whiter alternative to portland cement that co-produces valuable critical minerals from industrial waste.
Replace OPC in concrete for new construction projects; Use in high-visibility architectural applications; Deploy in urban areas to reduce heat island effect; Integrate with existing concrete supply chains; Apply in environmentally conscious building projects
Operates 250 TPY pilot plant in Somerville, MA; Developing 30,000 TPY commercial facility in Holyoke, MA; Backed by Holcim, CRH, Siam Cement Group, Suffolk Construction; Deployed in real-world projects since 2023; Funded by U.S. DOE ARPA-E and IEDO programs; Raised over $200M in total funding