Production of low-CO2 calciumsulfoferroaluminate clinker from bauxite residue

Bauxite residue (BR) is the main waste of the alumina sector produced at rates of 7 million tons per year in the EU. The recycling rates are less than 100 thousand tons per year, however. In the EU-funded Horizon 2020 project ‘Industrial Residue Activation for sustainable cement production – ReActiv’ modification will be made to both the alumina production and the cement production side of the chain, in order to link them through the new ReActiv technologies. The latter will modify the properties of the industrial residue, transforming into an active material (with pozzolanic or hydraulic activity) suitable for new, low CO2 footprint, cement products. In this manner ReActiv proposes a win-win scenario for both industrial sectors (reducing wastes and CO2 emissions respectively). The consortium consists of 21 project partners from industry (7 European alumina plants and the cement research centre of LafargeHolcim in France), research and development, consulting and 5 universities throughout Europe.

Within the Reactiv project, we offer a full-time PhD position (3 years fellowship) at the Department of Materials Engineering, KU Leuven, for a highly motivated and ambitious PhD candidate working on the production of low-CO2 calciumsulfoferroaluminate clinker from bauxite residue. The tasks include modeling and prediction of the clinker phase assemblage, the production of the clinker, including physical, chemical and structural analysis, followed by a study of the hydration behaviour. The work concludes with a bench scale optimisation of cement production that builds the base for later pilot-plant trials at the facilities of LafargeHolcim.

The position will be supervised by Prof. Dr. Yiannis Pontikes and Dr. Tobias Hertel and is based in Leuven (Belgium), a cosy, historical university town, with a central location in Western Europe, about 30 km from Brussels.

The candidate’s profile:

We offer:


Please send your 1-page CV, a motivation letter, your transcript of records (Bachelor and Master studies) to Prof. Dr. Yiannis Pontikes ( and Dr. Tobias Hertel (

More information on conditions, salary and benefits can be retrieved here:

KU Leuven seeks to foster an environment where all talents can flourish, regardless of gender, age, cultural background, nationality or impairments.

SIM² Education