Low-carbon construction materials for the builders of tomorrow
The circular economy between steel and cement
Cocoon transforms the by-product of electric steelmaking into LoopCem™, a scalable, low-carbon Supplementary Cementitious Material (SCM).
Our Product
Meet LoopCem™ — a cost-competitive, low-carbon SCM engineered from Electric Arc Furnace (EAF) slag. LoopCem™ performs comparably to existing SCMs at a 30% weight replacement ratio, meeting industry benchmarks for strength and durability.
Cement and Concrete producers can reduce embodied CO₂ by up to 27% by replacing a portion of Ordinary Portland Cement (OPC) with LoopCem without any premium required.
Meet LoopCem™ — a cost-competitive, low-carbon SCM engineered from Electric Arc Furnace (EAF) slag. LoopCem™ performs comparably to existing SCMs at a 30% weight replacement ratio, meeting industry benchmarks for strength and durability.
Cement and Concrete producers can reduce embodied CO₂ by up to 27% by replacing a portion of Ordinary Portland Cement (OPC) with LoopCem without any premium required.
Our Process
Our system seamlessly integrates with existing slag-handling operations at EAF steel mills.
Molten slag is cooled up to 100× faster than conventional slag granulation and produces a reliable SCM with consistent reactivity indexes between 85-100%.
Why we do what we do
Steel and cement drive 14% of global CO₂ emissions. Our technology can enable both industries to decarbonize and avoid over 10 million tonnes of CO₂ by 2032.
The circular economy between steel and cement
Cocoon transforms the by-product of electric steelmaking into LoopCem™, a scalable, low-carbon Supplementary Cementitious Material (SCM).
Our Product
Meet LoopCem™ — a cost-competitive, low-carbon SCM engineered from Electric Arc Furnace (EAF) slag. LoopCem™ performs comparably to existing SCMs at a 30% weight replacement ratio, meeting industry benchmarks for strength and durability.
Cement and Concrete producers can reduce embodied CO₂ by up to 27% by replacing a portion of Ordinary Portland Cement (OPC) with LoopCem without any premium required.
Our Process
Our system seamlessly integrates with existing slag-handling operations at EAF steel mills.
Molten slag is cooled up to 100× faster than conventional slag granulation and produces a reliable SCM with consistent reactivity indexes between 85-100%.
Why we do what we do
Steel and cement drive 14% of global CO₂ emissions. Our technology can enable both industries to decarbonize and avoid over 10 million tonnes of CO₂ by 2032.
Awards & Recognition
Partner with us
Find out more about our technology, how we partner with the steel and concrete industry, and our innovative SCM, LoopCem™.
We want to unlock the circular economy between steelmaking and the cement industry
Privacy Policy
Partner with us
Find out more about our technology, how we partner with the steel and concrete industry, and our innovative SCM, LoopCem™.
We want to unlock the circular economy between steelmaking and the cement industry
Privacy Policy
Partner with us
Find out more about our technology, how we partner with the steel and concrete industry, and our innovative SCM, LoopCem™.
We want to unlock the circular economy between steelmaking and the cement industry
Privacy Policy
