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News 736m3 of cement-free concrete poured in London Power Tunnels project

736m3 of cement-free concrete poured in London Power Tunnels project

Written by Global Slag staff
17 May 2023
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UK: Contractors poured 736m3 of cement-free concrete in an 11-hour continuous pour at the Hurst substation tunnel drive shaft of the London Power Tunnels project on 11 May 2023. Construction Index News has reported that Capital Concrete supplied the concrete. It uses a formula developed by Earth Friendly Concrete to replace 100% of cement with fly ash and ground granulated blast furnace slag (GGBFS) in the presence of an activator and admix solution. The supplier said that the concrete will reduce CO2 emissions by 64% compared with ordinary Portland cement (OPC), corresponding to 111kg/m3 of concrete.

Last modified on 17 May 2023
Published in Global Slag News
Tagged under
  • UK
  • construction
  • cementfree
  • fly ash
  • ground granulated blast furnace slag
  • circular economy
  • Earth Friendly Concrete
  • Capital Concrete
  • sustainability
  • CO2

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