Heidelberg Materials x Vateris

Industrial validation of Vateris’ GypCarb product in Heidelberg Materials CEM I concrete

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Vateris supported Heidelberg Materials in a structured validation trial, providing mix design support and performance testing focused on early-age and long-term compressive strength gains in CEM I mixes. By incorporating GypCarb into Heidelberg’s standard concrete mix, we demonstrated a 40% increase in compressive strength at 28 days – results that closely aligned with Vateris’ in-house development programme, where Heidelberg cement serves as a standard reference.

Prove the performance of Vateris’ reactive calcium carbonate (GypCarb) product in Heidelberg Materials’ CEM I concrete mixes – validating early-age and long-term strength gains for one of the world’s largest cement and concrete producers with a major presence across Europe and the UK.

Impact & Metrics

+40%compressive strength at 28 days compared to baseline CEM I

+15%compressive strength at 28 days

10%achieved with only 10% Vateris product addition

Interesting solution from a circular economy perspective where we can utilise the flue gas emissions from our cement works

Joe ConwayTechnical Specialist, Heidelberg Materials

Results

Unlocking technical potential

The Heidelberg Materials trial confirmed that Vateris’ GypCarb product delivers strong early-age performance while maintaining long-term strength – enabling faster strength development with minimal disruption to existing mix designs.

A 40% increase in 1-day strength using only a small product addition highlights clear potential for productivity gains and cement-reduction strategies, supporting lower embodied carbon outcomes. These results closely aligned with Vateris’ in-house development programme, where Heidelberg cement is used as a standard reference across internal testing – reinforcing confidence that the performance is repeatable and not a one-off result.

The success of the trial enabled deeper engagement with Heidelberg Materials UK, supporting discussions with senior leadership and leading to a formalised cement supply relationship for ongoing testing and mix optimisation. The focus now is on extending these validated results into broader applications and long-term industrial deployment.