Decarbonisation of cement and concrete: Scenarios up to the year 2050
The presentation describes pathways to the decarbonisation of cement and concrete up to the year 2050. Specifically, it presents two scenarios aimed at reducing direct CO2 emissions of cement and the cement and concrete value chain. chain as a whole: An ambitious reference scenario and a climate neutrality scenario.
The ambitious reference scenario essentially provides the enhanced deployment of currently available CO2 reduction technologies in cement and concrete and is based on already very challenging assumptions.
The climate neutrality scenario goes even further than the ambitious reference scenario and thus reaches the limits of what would appear to be technically feasible today. What essentially distin-guishes it from the reference scenario is the additional use of breakthrough technologies. This ap-plies for example to establishing markets for cements with a clinker content of between 35 and 50%, new binders and the use of hydrogen as an energy source. Further increases in efficiey and innovations in the production and use of concrete are also assumed. Finally, it also includes carboncapture and its subsequent utilisation and storage (CCUS). This is based on the prerequisite that all other potential levers available for reduction have been exhausted to such an extent that the use of CCUS is solely restricted to the amounts of CO2 which cannot be reduced by conventional means.
About Christoph Müller
Prof Dr Christoph Müller
VDZ Technology gGmbH, Research Institute of the Cement Industry, Duesseldorf, Germany
Professor Dr Christoph Müller is currently one of the Managing Directors of VDZ Technology gGmbH and head of the Concrete Technology Department of the Research Institute of the Cement Industry. He graduated as a civil engineer with specialisation in structural engineering at the Technical University RWTH Aachen in 1993. As Research Associate at the Institute of Building Materials Research of the RWTH Aachen (ibac), he focused on the use of industrial by-products (e.g. fly ash) as a concrete addition and construction waste as recycled aggregates for the production of concrete. In 2000, he finished his PhD in this subject. Since then, he is a scientist at the German Cement Association and at the Research Institute of the Cement Industry in Duesseldorf. He is engaged in all fields of concrete technology, in particular, with the durability of concrete (e.g. steel corrosion, alkali-silica-reaction). In 2001, he was appointed as a Senior Scientist. In 2007, he became the Head of Concrete Technology Department. Since 2012, he is holding the post of Managing Director of VDZ Technology gGmbH. Currently, he is a member of the board of the German Committee for Structural Concrete (DAfStb), Berlin, as well as the chairman of CEN (Comité Européen de Normalisation) Technical Committee (TC) 104 „Concrete and related products“. In December 2014, Dr Müller was appointed an honorary professor by the university Ruhr-Universität Bochum (RUB) where he has been holding lectures for many years.
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