International Xella Colloquium

If not now, when?
Seizing the chance to decarbonise the construction industry

Gallery

Impressions from the International Xella Colloquium 2022

We would like to thank all guests, speakers and contributors.

Program

Our key topics

In autumn 2022 the Xella Technologie- und Forschungsgesellschaft mbH is organising a one-day scientific and technical colloquium devoted to the subject of Mineral building materials for climate-friendly construction.

The colloquium addresses the role of the Autoclaved Aerated Concrete (AAC) and Calcium Silicate Masonry Unit (CSU) industry in the transition towards a decarbonized built environment.

start at
09:00 am
Torsten Schoch, Xella Technologie- und Forschungsgesellschaft mbH
Christophe Clemente, Xella Group
Hans-Dieter Hegner, Stiftung Humboldt Forum im Berliner Schloss
“The Humboldt Forum in the Berlin Palace – at the cultural and sustainable heart of Berlin”
Henning Ellermann, Deutsche Unternehmensinitiative Energieeffizienz e.V. (DENEFF)
“Do’s and Don’ts for Whole Life Carbon in the Building Sector”
Dr. Stephen Richardson, World Green Building Council
“Reorienting Capital Flows: Can the EU Taxonomy Help Decarbonise the Building Sector?”
Hildegard Bentele, European Parliament
“The European Green Deal”
10:50 am Coffee-Break

Decarbonisation of raw materials, circularity and recarbonatisation
start at
11:20 am
Dr. Volker Thome, Fraunhofer-Institute for Building Physics, Germany
“Innovative Recycling Approaches to Enable New Material Loops for Autoclaved Aerated Concrete”
Dr. Oliver Kreft, Xella Technologie- und Forschungsgesellschaft mbH, Germany
“Circular Economy's Potential to Reduce Autoclaved Aerated Concrete Carbon Emissions”
Dr. Peter Stemmermann, Karlsruher Institute of Technology, Germany
“Belite Cement Clinker from Autoclaved Aerated Concrete – a Contribution towards CO₂-Reduced Circular Building Materials”
Dr. Hartmut Walther, Xella Technologie- und Forschungsgesellschaft mbH, Germany
“Forced Carbonation – a New Method to Determine the Degree of Recarbonation of Calcium Silicate Masonry Units”
Julius Schäufele, Concular GmbH, Germany
“How to Achieve Circularity in the Building Sector?”
1:25 pm Lunch at Bistro Lebenswelten, Humboldt Forum

Decarbonisation of the manufacturing of AAC and CSU
start at
2:25 pm
Chadwick Chen, Anhui Keda Industrial Co., Ltd (Keda Suremaker), China
“Evaluation Framework of Decarbonization Technologies for the Autoclaved Aerated Concrete Production”
Andreas van Briel, Xella Building Materials, Netherlands
“Reduction of CO₂ Emissions in the Calcium Silicate Masonry Unit Production”

Sustainability at building level
start at
3:15 pm
Prof. Dr.-Ing. habil. Thomas Lützkendorf, Karlsruher Institute of Technology, Germany
“Life Cycle Assessments of Building Materials within the Framework of the Construction Products Regulation (CPR) in Europe”
Prof. Dr. Natalie Eßig, Munich University of Applied Sciences, Germany
“Sustainable Buildings and Certification – We Have to (Re)think and (Re)act!”
04:30 pm Coffee-Break

Global differences & challenges of sustainable construction with AAC and CSU
start at
5:00 pm
Dr. Alexander Röder, Institut Bauen und Umwelt e. V., Germany
“The Role of Environmental Product Declarations (EPDs) for Decarbonizing our Built Environment”
Chadwick Chen, Anhui Keda Industrial Co., Ltd (Keda Suremaker), China
“Sustainable Green Building Development in China”
Dr.-Ing. Wolfgang Eden, Bundesverband Kalksandstein Industrie e. V., Germany
“The German Calcium Silicate Masonry Industry's Path to Climate Neutrality”
Robert Turski, European Autoclaved Aerated Concrete Association
“The EAACA Net-Zero Roadmap forAutoclaved Aerated Concrete”