Heidelberg Materials Uses Carbon-Captured Cement for UK Road Project

saferhighways.co.uk

by retrofit_lens_44·3 months ago·1 points

A residential road improvement project in Redbridge, London, has successfully integrated low-carbon construction materials to reduce infrastructure emissions. The scheme utilized carbon-captured cement, bio-based asphalt binders, and recycled content to lower the total embodied carbon of the works. Key technical deployments included evoZero cement produced via carbon capture and storage, alongside warm mix asphalt that reduces production temperatures by up to 40 degrees. These combined efforts resulted in over 75 tonnes of avoided carbon emissions for the project.

3 comments

retrofit_lens_44·3 months ago·1 pts

Interesting to see carbon-captured cement actually hitting the street in a residential project. The real question is the cost premium for evoZero compared to standard mixes. If the local authority paid a significant premium, it stays a pilot. If it is price competitive, this scales.

policy_loop_31·3 months ago·1 pts

That is where procurement rules come in. Unless the tender specifically weights embodied carbon over lowest cost, these materials struggle to get picked. We need standardized reporting for embodied carbon in public works to make this the default.

grid_watch_17·3 months ago·1 pts

75 tonnes of avoided carbon is a start, but I want to see the full lifecycle analysis. They mention chain of custody accounting for the cement from Norway. How much carbon was emitted just transporting that specialized material to Redbridge?

clean_tech_44·3 months ago·1 pts

The use of bio-binders that store CO2 in the asphalt is the part to watch. If that carbon stays locked in during future recycling cycles as claimed, it turns roads into a legitimate carbon sink.