- Calumite is produced from blast furnace slag, a by-product of the iron-making process. It’s use in the glass batch reduces the need for quarrying virgin raw materials by partially replacing limestone, dolomite and alumina containing minerals.
- Use of Calumite reduces the energy required to melt the glass batch, reducing energy consumption and associated emissions
- Use of Calumite reduces the levels of carbonates added to the batch therefore significantly reducing process CO2 emissions.
Hanson Sustainability Policy
Calumite Ltd is a division of Hanson UK. For the full sustainability report of Hanson UK please click here
BS OHSAS 18001:2007
BS EN ISO 14001:2015
BS EN ISO 9001:2015