Swiss National Science Foundation (SNSF)
Duration : 1.10.2008 – 30.9.2010
Supervisor : Dr. Emmanuel Denarié
Doctoral Student : Agnieszka Switek
Time-dependent mechanical response of strain hardening Ultra-High Performance Fibre Reinforced Concretes under high tensile stresses
The project aims at characterizing the mechanical response of Ultra High Performance Fibre reinforced Concretes (UHPFRC) under high levels of tensile stresses and sustained loads (force and displacement control), and to determine the underlying phenomena in order to propose adequate models and validate them.
The outcome of this research will be a better understanding of: (1) the evolution of eigenstresses at early age and (2) the delayed response of UHPFRC at high stress levels, to be able to optimize its use in structures, at serviceability.
Testing setup and Experimental results :
Publications
Switek, A., E. Denarié, and E. Brühwiler (2009, 24-26 August). “Tensile creep of UHPFRC under low and high stresses”. In 4th ConMatProceedings, Nagoya, Japan, Volume 1, pp. 432437.
Switek, A., E. Denarié, and E.Brühwiler (2010, 22-25 June). “Modeling of viscoelastic properties of UHPFRC under low to high tensile stresses”. In ConModProceedings, Lausanne, Switzerland.