TECHNOLOGY
One process. Two products. No waste.
Our mineralization process converts steel slag and captured CO₂ into PCC and a low-carbon cement binder — in a single integrated pathway.
HOW IT WORKS
Steel slag is rich in calcium. Our process extracts that calcium and lets captured CO₂ lock onto it, forming stable calcium carbonate — the mineral PCC. What remains becomes a low-carbon binder that replaces part of cement.
High-grade PCC
A high-purity mineral used in applications such as paper, paints and coatings, plastics, construction materials, and other industrial products.
SCM binder
A supplementary cementitious material designed for use in lower-carbon cement, concrete, mortars, and other binder applications.
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Steel slag in
Residue arrives from the steel plant — today a cost and a waste problem.
WHERE WE ARE
The process is validated at lab scale, built on years of X2PCC research at Aalto University. We're now proving material performance with industrial partners and preparing our first demonstration plant.
PCC
Precipitated calcium carbonate
Up to 99.99%
purity
vs. conventional limestone-based PCC
XX
particle size
[PLACEHOLDER: replace XX with verified particle size]
SCM
Low-carbon binder
XX %
of reference strength at 28 days
EN 196-1 mortar, at YY% cement replacement
RESEARCH BASE
LithoBind builds on more than 10 years of research at Aalto University, including earlier work on producing precipitated calcium carbonate (PCC) from steel slag and other calcium-rich industrial residues. By combining this foundation with Aalto University's latest research in mineral-based materials and alternative binders, the team identified a way to turn industrial steel residue into two valuable end-products: high-grade PCC and a supplementary cementitious material (SCM).
Today, the technology is being validated and prepared for industrial use with the support of Business Finland and Aalto University — taking the process from the laboratory toward its first demonstration plant.
We're validating the process with industrial partners
If you produce steel or PCC, or use binders — let's talk. We are looking for:
Partners for demonstration plants
Steel and PCC producers, as well as cement and concrete companies, interested in co-developing our demonstration plant.
Partners for material R&D
Partners interested in valorizing their slag, or in developing and testing circular PCC and supplementary cementitious materials.
Interested in partnering with us? Let's talk.