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cement technology

Carbon-negative cement -- Brimstone

Brimstone has developed an industrial process for producing industry-standard Portland cement with significantly less carbon emissions. Brimstone’s decarbonized process is a breakthrough in cement production, making industry-standard Portland cement with carbon-free calcium silicate rock instead of limestone. Brimstone cement is chemically and physically identical to conventional Portland cement, with the same quality and performance. Portland cement contains two core products: Portland cement clinker and supplementary cementitious materials (SCM).

Sublime Cement™

Sublime Cement™ is a carbon-neutral alternative to ordinary Portland cement (OPC). Sublime’s novel cement process uses electrochemistry to extract reactive calcium (Sublime Lime™) and Silicates from abundant raw materials that are then blended into a final cement. In the electrochemical process, entire parts of non-carbonate rocks are converted into cement at ambient temperatures. The process uses carbon-free feedstocks and low temperatures, thus, Sublime Cement does not emit CO2. This cement is a drop-in replacement for OPC, meeting or exceeding construction performance standards.