The concrete, Ecocem ACT, replaces clinker with other materials. Clinker production emits CO2 both from the large amounts of fossil fuel used to heat kilns, and from the chemical process itself. Ecocem’s ACT replaces this material with SCMs and limestone filler, cutting its overall carbon impact.
The challenge for the sector has been to demonstrate that novel materials like this can be poured in the same way as traditional mixes. Ecocem’s material has been used on a demonstrator in Wembley Park by Sisk. At the Uxbridge Moor substation project, Murphy broke UK records for the largest single pour of the material, in temporary works.
In Shipley, the material was used for the first time in permanent works, in a capping beam for a contiguous pile wall. In this use, it is expected to save 145kg CO2e (carbon dioxide equivalent) per cubic metre compared to CEM III/A, a BS8500 mix.
Got a story? Email [email protected]
