Denys Breysse is professor at the Department of Civil and Environmental Engineering at the Institute of Mechanics and Engineering (I2M) within the Bordeaux University, France. His research interests focus on: non-destructive testing and the use of data provided by NDT for reassessing the material condition and the structural safety; risk management in Civil Engineering structures and projects; heterogeneities at various scales in building materials and their consequences on safety; modelling of stochastic processes for civil engineering materials and structures.

He founded the French association for RIsk MAnagement in Civil Engineering (@MRGenCi) in 2003 and was its first President. He was Chair of the French Association for Civil Engineering Academics (AUGC), chairman of the RILEM TC-INR 207 on combination of NDT in reinforced concrete of the RILEM TC-ISC 249.

In-situ strength assessment of concrete: detailed guidelines.- How to identify the recommended number of cores?.- Evaluation of concrete strength by combined NDT techniques: practice, possibilities and Recommendations.- Identification of test regions and choice of conversion models.- Identification and processing of outliers.- How investigators can assess concrete strength with on-site non-destructive tests and lessons to draw from a benchmark.- How investigators can answer more complex questions about assessing concrete strength and lessons to draw from a benchmark.- Illustration of the proposed methodology based on synthetic data.- Illustration of the proposed methodology based on a real case-study.- Statistics.- Model identification and calibration.- For those who want to go further.