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Defense Xuan Quy Le

Xuan Quy LE, PhD student at LAMES, Université Gustave Eiffel, has defended his thesis entitled

"Analysis and modelling of APT experiments based on optimized management of database of mechanical measurements"


monday december 5th 2022 at 1.30 PM
Amphitheatre Viarme, Université Gustave Eiffel, campus of Nantes (France)

The jury was composed of :
Christiane RAAB : Professor, EMPA, Switzerland
Nicolas BUECHE : Professor, Bern University of Applied Sciences, Switzerland 
Bréno BARRA : Professor, Universidade Federal de Santa Catarina, Brazil
Cédric SAUZÉAT : Professor, ENTPE, Université de Lyon
Frédéric GRONDIN : Professor, École Centrale de Nantes
Pierre HORNYCH : Thesis Director, ITPEHC, HDR, MAST-LAMES, Université Gustave Eiffel
Mai Lan NGUYEN : Supervisor, Dr. CR, MAST-LAMES, Université Gustave Eiffel
Quang Tuan NGUYEN : Co-Supervisor, Associate Professor, UTC, Vietnam

Abstract : Accelerated pavement tests (APT) have been increasingly used in recent years to assess the behaviour of pavement structures and their lifetimes. This is mainly due to their ability to simulate the full-scale effect of traffic loads and climatic conditions on pavements, in a short period of time, and to follow the behaviour of the pavements until the end of their service life. These tests make it possible to evaluate pavement design methods or the use of innovative pavement materials and structures. However, the measurements made during accelerated pavement tests are numerous and varied, and there is no common approach to assess the behaviour of the studied pavements. The main objective of this thesis is to develop a methodology to analyse the behaviour of pavements, in accelerated tests, from their initial conditions to their final level of deterioration. This approach is applied to an experiment carried out at Université Gustave Eiffel, as part of the ANR SolDuGri project, which aimed to compare the performance of a traditional bituminous pavement structure with structures reinforced by fiberglass grids. From these analyses, a probabilistic pavement design approach, aiming to extend the French pavement design approach, in order to better take into account the variations of certain design parameters, to predict the service life of pavements is proposed, and applied to the analysis of accelerated tests on pavements.

Keywords :   accelerated pavement testing, bituminous pavements, pavement deterioration, probabilistic analysis