Independent Cement is at the forefront of the cement industry and committed to meeting the growing demand for sustainable construction options. Specially formulated to reduce the environmental impact of cementitious binders used in concrete design. ICL’s Ecoblend products are being used in major products throughout Victoria and NSW.
The bulk carrier Cape Nelson has delivered its 200th shipment of Granulated blast furnace slag to Steel Cement’s purpose built grinding facility in Yarraville at the Port of Melbourne. This shipment takes the total amount of slag delivered by SteelCement to 5 million tonnes. The slag, a waste product of the steel making process, is used to reduce the embodied energy in ICL’s and Victorian industry cements by abating the need for clinker based traditional cement. This ‘Steelcement product’ has been used in a range of residential, commercial and infrastructure projects since 1991.
Iconic projects such as the Bolte Bridge, Docklands stadium, Victorian Desalination plant and the two major tunnel projects currently under construction, are using slag for various environmental, quality or economic reasons. Cement manufacture is one of the main sources of global greenhouse gas emissions because of the large amounts of energy required to convert limestone to cement clinker.
Global cement manufacture accounts for 8% of global greenhouse gas emission, more than ships and airplanes combined; a figure that is growing. ICL’s utilisation of slag as a cement replacement means that 5.5 million tonnes of GP (General Purpose) cement has not been used in favour of using ‘Steelcement’ and this represents almost 2.5 million tonnes of avoided carbon dioxide emissions. On the international voluntary carbon trading market those emissions reductions are worth $5 per tonne; about $12.5 million dollars. This is the cheapest form of carbon sequestration on the planet! Unfortunately apart from Greenstar and ISCA building ratings tools this significant emissions reductions opportunity is neither promoted nor encouraged through carbon trading mechanisms. *Statistics and figures sourced from Swinburne University GHG.