| since 1985 | Member of the German Society of Geophysicists, DGG |
| 1992-1994 | Founding member of the SFB 381 Characterization of fibre reinforced materials using non-destructive testing; 2003 - 2007: Member of the executive board |
| 1993-1999 | Working group Methods in digital waveform analysis of the German Society of Geophysicists |
| since 1994 | Member of the German Society of Non-destructive Testing, DGZfP |
| since 1994 | Technical committee Acoustic emission technique, DGZfP, 1998-2007 committee deputy chairman |
| since 1996 | Technical committee NDT in civil engineering, DGZfP |
| 2000 - 2006 | Secretary of the Rilem Technical Committee “Advanced testing of cement based materials during setting and hardening” , TC 185-ATC |
| 2001 | Invited Researcher at the Ecole Nationale des Travaux publics de l’Etat (ENTPE) in Vaulx en Velin, France |
| since 2001 | Member of the Editorial Board NDT.net - The e-Journal of Nondestructive Testing |
| 2006 - 2011 | Secretary of the Rilem Technical Committee "Sonic methods for quality control of fresh cementitious materials", TC 218-SFC |
| since 2008 | Member of the German Construction Technology Platform (GCTP) ("AG Networks", "AG Cultural Heritage" and "AG Underground Construction"; 2009-2010: Member of the board of trustees; since 2010: Member of the executive board |
| since 2009 | Member of the German Wind-Energy Assocciation (BWE - Bundesverband WindEnergie) |
| since 2011 | Member of the Windenergy Research Network of Southern Germany (WindForS) |
| since 2012 | Member of the European Working Group on Acoustic Emission (EWGAE) |
| since 2014 | Member of COST TU1404 Towards the next generation of standards for service life of cement-based materials and structures |
