Commonly known as 'GGBS'
evoBuild low carbon GGBS is Ground Granulated Blast furnace Slag, commonly known as ‘GGBS’.
It is a cement substitute, manufactured from a by-product of the iron-making industry.
Using one tonne of evoBuild low carbon GGBS in concrete reduces the embodied CO2 by around 650kg, compared to using one tonne of Portland Cement. It also increases the concrete’s durability and is more sustainable than other cement substitutes such as Fly Ash.
evoBuild low carbon GGBS is manufactured by Heidelberg Materials Cement, which acquired Civil & Marine in 2006. evoBuild low carbon GGBS from Heidelberg Materials Cement is the only GGBS manufactured in the UK.
| Principal Oxides | |||||
|---|---|---|---|---|---|
| CaO | SiO2 | Al2O3 | MgO | Fe2O3 | |
| evoBuild low carbon GGBS | 40% | 35% | 12% | 10% | 0.2% |
| Portland Cement | 65% | 20% | 5% | 1% | 2% |
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