The future of cement is zero.
OPUS ZERO™ is a full replacement for Portland cement, minus the carbon. Drop-in. Cost-competitive. Now in concrete trials.
100% substitute
FULL PORTLAND CEMENT REPLACEMENT — A COMPLETE SWAP, NOT A BLEND
Path to 0% CO₂
THE PATH TO ZERO CO₂ — WHEN PRODUCED WITH RENEWABLE ENERGY
THE CHEMISTRY QUANDARY
The main problem isn’t how you make cement. It’s what you make it from.
Portland cement has shaped construction for 200 years.
It’s also been the source of one of construction’s most stubborn emissions problems—because the majority of the carbon isn’t in how you make it, it’s in what you make it from.
Limestone, the primary raw material in Portland cement, releases CO₂ when processed. There’s no engineering around it. OPUS ZERO™ is built around a different chemistry entirely.
THE ROAD AHEAD
True zero CO₂ cement—not net zero—is within reach. And we believe it doesn’t have to cost the Earth, financially or environmentally.
TERRA’s MANDATE
No compromises
Our products are designed to compete head to head with traditional materials on economics, availability, and technical performance—with significant carbon reduction as an added advantage.
Real innovation isn’t convincing the market to sacrifice. It’s proving sustainability can outperform the status quo.
COMING SOON
Built for zero carbon. Now in concrete trials.
OPUS ZERO™ testing is underway.
Currently in concrete trials to validate performance against traditional cement.
Abundance-based design
OPUS ZERO™ is formulated from silicate rock—even more abundant than limestone and available worldwide.
No carbonate feedstocks
Raw materials are selected specifically because they don’t release CO₂ when processed. The emissions problem is addressed at the chemistry level, not managed after the fact.
No clinker
Clinker is the carbon-intensive core of Portland cement production. OPUS ZERO™ contains none.
Drop-in solution
OPUS ZERO™ is designed to integrate with existing production and supply chains—the same drop-in principle as OPUS SCM™.
THE OPUS ZERO™ ADVANTAGE
A true advance in cement
Outperforming legacy cement
Current concrete trials show OPUS ZERO™ matching, and in several metrics exceeding, legacy Portland cement. The goal is a seamless transition—a product that performs like the cement the industry knows, without any carbon.
Designed to be drop-in ready
The goal: to work similarly within existing concrete infrastructure, supply chains, and production processes.
Global feedstock
Made from the most abundant rock type on earth. Supply is never the constraint.
Cost-competitive
Priced to perform without subsidies or sustainability surcharges.
Be the first to know
OPUS ZERO™ will open to a limited number of early partners.
Ready to talk? So are we.
If you’re a construction materials company planning for full decarbonization, now is the time to start the conversation.