Innovative materials and processes are reducing carbon emissions in residential road projects across Greater London.
A recent residential road improvement in the London Borough of Redbridge highlights significant progress in low carbon construction techniques. Heidelberg Materials UK, in partnership with Kenson Highways, utilised evoZero cement and advanced asphalt technologies to deliver a project with substantially reduced carbon emissions. The evoZero cement is produced using carbon capture technology in Norway, allowing for near-zero carbon cement to be supplied without increasing transport emissions. This cement was used in kerbs, edging haunching, and the footway sub-base, demonstrating its versatility in residential infrastructure.
The project also incorporated asphalt containing 25 per cent reclaimed asphalt and a bio-binder known as CarbonLock, which absorbs and permanently locks CO₂ within the pavement. This innovation contributes to a 25 per cent reduction in carbon emissions compared to traditional hot mix asphalt. Additionally, the asphalt was produced using Heidelberg’s Era 140 warm mix process, which lowers production temperatures by up to 40ºC, cutting fuel consumption and CO₂ emissions by up to 15 per cent. This method also improves working conditions and accelerates project delivery.
From a construction management perspective, this project exemplifies the importance of close collaboration with suppliers and technical teams to integrate novel materials effectively. Managing the supply chain to ensure product performance while meeting sustainability targets is essential for achieving carbon reduction goals in high-end residential projects. Such coordinated efforts enable projects to progress smoothly and deliver on environmental commitments without compromising quality or timelines.
Source: The Construction Index
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