iC goes Az W

Sustainable Construction with Concrete?

Thu 06.11.2025, 17:00-19:30
Two women standing next to each other, both dressed in black, both with blonde hair

Portrait on the left: Martina Bauer, portrait on the right: Martina Maier
© Photograph: Debora Mittelstaedt, Thomas Schrott

Concrete is one of the most widely used building materials worldwide – and at the same time responsible for around 9% of global CO₂ emissions. Where is the use of concrete still sensible or unavoidable, and how can its ecological footprint be improved? The symposium brings together experts from research, planning and architecture to discuss new approaches to working with concrete. The focus is on innovative material developments, resource-saving construction methods, successful new buildings and exemplary transformations. The event will conclude with a panel discussion on the potential, contradictions and future prospects of this controversial building material.

Moderator: Wojciech Czaja; Concept & Organisation: Alexandra Viehhauser

17:00 – 17:15
Welcome: Angelika Fitz, Az W & Helmut Zehentner, iC consulenten
Introduction: Wojciech Czaja, journalist

17:15 – 18:00
Double conference

Stefan Krispel, smartminerals, TU Vienna + & Helmut Zehentner, iC consulenten
Research, innovation and practice – sustainable concrete development in dialogue

18:00 – 18:50
Presentations – Built Experiments

Martina Bauer, Barkow Leibinger Architects
New construction and concrete innovation – from ultra-lightweight concrete to high-rise buildings

Martina Maier, Snøhetta Studio Innsbruck
Transformation with concrete – the Oxy building in Brussels and other existing buildings as models

19:00 – 19:45
Impulses and panel discussion with Stefan Krispel, Helmut Zehentner, Martina Berger, Martina Maier, Arian Lehner, architektur aktuell, moderated by Wojciech Czaja

A cooperation between Az W and iC consulenten