Brimstone develops a decarbonized process for producing ordinary portland cement that meets ASTM C150 standards, significantly reducing CO2 emissions associated with cement production. Their technology aims to eliminate 120,000 metric tons of CO2 annually, addressing the cement industry's contribution to 7.5% of global CO2 emissions.
Funding
$60.1M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
UDFounders
Product
Problem
The production of ordinary portland cement, a critical component in concrete, contributes significantly to global CO2 emissions, accounting for approximately 7.5% of the total, due to the high-temperature processing of limestone. Traditional cement manufacturing methods release substantial amounts of carbon dioxide, exacerbating climate change.
Solution
Brimstone has developed a decarbonized process for producing ASTM C150-compliant ordinary portland cement, significantly reducing the carbon footprint associated with cement production. Instead of limestone, Brimstone utilizes calcium silicate rocks, which are 200 times more abundant, and employs a novel chemical extraction process that does not release carbon dioxide. This method yields a byproduct of magnesium, which can absorb CO2 from the atmosphere, potentially resulting in carbon-negative cement. The resulting cement is chemically and structurally identical to traditional portland cement, ensuring compatibility with existing construction practices.
Target Audience
The primary target audience includes construction companies, developers, infrastructure project managers, and government entities seeking to reduce the carbon footprint of their building materials.
Features
- Utilizes calcium silicate rocks as an alternative to limestone, reducing CO2 emissions
- Proprietary chemical extraction process that avoids the release of carbon dioxide
- Production of magnesium as a byproduct, which can absorb CO2 from the atmosphere
- Meets ASTM C150 standards for ordinary portland cement, ensuring industry compliance
- Compatible with existing concrete production and construction methods
- Cost-competitive at scale, aiming to deliver cement at competitive market prices