Sustainable construction materials with a small CO2 footprint are playing an ever more important role for us and our customers. We use special additives in order to improve the CO2 balance of the products based on our Portland cement. These alternative materials, which are waste products from steel mills and coal-fired power plants, partially replace Portland cement clinker in the production of "composite cement". We have also been working for several years to develop alternative binding materials that almost completely eliminate the need for conventional clinker.
Research and Development
Of course, at HeidelbergCement we are also working to develop new products. The discovery of a new reactive clinker phase in our labs has furnished the basis for the development of an alternative clinker technology. Thanks to changes in chemical composition and low burning temperatures this new technology produces 30% less CO2 emissions while consuming approximately 10–15% less energy in comparison to conventional clinker.
We are now working on the development of a manufacturing technology for this clinker, which has already been registered under the brand name TernoCem®. To this end, and within the framework of the TernoCem® product development programme launched in 2015, we now want to obtain scientific-technical knowledge about raw materials suitability, clinker production and hydration mechanisms for cement. We are also establishing the expertise needed to ensure important product attributes such as workability and durability.
As a founding member of the Concrete Sustainability Council, we actively participated in 2015 in the development of a new certification system for sustainably manufactured concrete. This certification system is designed to help the concrete industry and its supply chain take social and economic aspects of their activities into account as they implement measures to continuously improve the environmental performance of their products.