Prof. Gehlen (*1966) conducts research in the field of construction materials. His research focuses, among other things, on the development of materials for large-format 3D printing in the construction industry, the development of methods for characterizing materials and components made from them and testing them with regard to a wide range of properties (including in-situ), and work aimed at describing and predicting the service life of mineral and metallic building materials as a function of exposure.

After studying chemistry and mineralogy in Bonn, he graduated in civil engineering from RWTH Aachen University in 1995. Subsequently, he obtained his doctorate at the RWTH Aachen (2000). He then founded an internationally active engineering firm in Munich, together with two partners.

After being appointed to a chair at the University of Stuttgart (spring 2006, chair "Materials in Civil Engineering"), he moved to the TUM chair "Materials Science and Testing" in the fall of 2008.

From 2012 to 2016, Professor Gehlen was Dean of Studies, from 2016 to 2021 Dean of the Faculty of Engineering Bau Geo Umwelt (BGU), and since October 2021 he has been the founding Dean of the new TUM School of Engineering and Design (ED).

Research Interests

• Concrete technology
• Durability of concrete constructions
• Corrosion of steel in concrete
• Service life design, protection, maintenance and restoration of concrete structures
• Material development for 3D printing in construction

Curriculum Vitae

Research Interests:

• Concrete Technology
• Durability of structural concrete
• Corrosion of steel in concrete
• Structural Health Monitoring, Service life design
• Rehabilitation of Structural Concrete
• Material development for 3D printing in construction

Memberships:

• RILEM TC PSC (Performance-based Specifications and Control of concrete durability),
• RILEM TC MMB (Methods of Measuring Moisture in Building materials and structures),
• RILEM TC SCI (Steel Concrete Interface),
• RILEM TC CIM (Chloride Ingress Modelling),
• CEN TC 51/WG12/TG5 (Corrosion of Reinforcement),
• CEN ECISS/TC 104/WG3 (Corrosion Resistant Reinforcing Steels),
• ISO TC71/SC/WG4 (Durability - Service Life Design of Concrete),
• CEN TC104/TC1/WG1 (German delegate representing DIN)
• CEN TC250/SC2/WG1/TG10 (German delegate, representing DIN)
• fib (Fédération internationale du béton / The International Federation for Structural Concrete
  • Co-chair Commission 5 (Structural service life aspects), Convenor of TG 5.8 and TG 5.11 after Reconstruction of fib now Commission 8,
  • Convenor of TG 8.6, Benchmarking of Deemed-to-Statisfy Rules in Standards
  • Convenor of TG 8.9, Deterioration Mechanisms (WP1, Rebar Corrosion Initiation) and
  • invited guest of TG 2.9 (Fastenings to Concrete and Masonry Structures),
  • Commission 10, Member of TG 10.1 (Model Code 2020) and AG4 (Action Group on Durability and Service Life)
• DAfStb, Deutscher Ausschuss für Stahlbeton (Mitglied in den Technischen Ausschüssen „Betontechnik“, „Schutz und Instandsetzung von Betonbauteilen“, Obmann der AG „Dauerhaftigkeitsbemessung“)
• DIN , Deutsches Institut für Normung e. V., (Obmann des NA "Betonstahl und Spannstahl", Mitglied der NA „Betontechnik“ und „Schutz, Instandsetzung, Verstärkung“),
• DIBt, Deutsches Institut für Bautechnik, (Mitglied im Sachverständigenausschuss "Bewehrter Poren- und Leichtbeton")
• FGSV, Forschungsgesellschaft Straßen- und Verkehrswesen, (Miglied des Lenkungsausschusses LA 8 „Betonbauweisen“ und des Arbeitsausschusses AA 8.2 „Baustoffe“),
• GfKORR, Gesellschaft für Korrosionsschutz e. V., Mitglied im Arbeitskreis „Korrosion im Bauwesen“