Recent failures of external prestressing grouted tendons: the paramount role of the HDPE duct
IABSE Congress 2020, Resilient Technologies for Sustainable Infrastructures , Christchurch, NOUVELLE-ZELANDE, 03-/02/2021 - 05/02/2021
Recent failures of external prestressing grouted tendons: the paramount role of the HDPE duct
The article describes recent cases of tendon ruptures by corrosion and investigations carried out on some bridges. Several causes related to HDPE ducts have been identified as damages during handling, degradation during threading and tensioning of strands, defective connection of the duct to the anchor body, damage during construction or operation,...
A Non-Intrusive Reduced Basis Method for Urban Flows Simulation
In this work, we present a non-intrusive method using the Reduced Basis framework in order to diminish the cost of numerical simulation arising from the computation of parameters-dependent Partial Differential Equations (PDE). This method involves the computation of less expensive (but less accurate) solutions of the PDE during the online stage, an...
Interlaminar Mode-I Fracture Characterization Underwater of Reinforced Bituminous Specimens
In order to investigate the interlaminar mode I fracture behavior of pavements, Wedge Splitting Tests (WST) have been developed for specimens extracted directly from field sections. As part of the French SolDuGri project focusing on bituminous pavement reinforced by glass fiber grids, WST are applied under static loads and different climatic condit...
Numerical simulation of two-point and four-point bending fatigue tests on asphalt mix using intrinsic material parameter...
ISBM 2020, RILEM International Symposium on Bituminous Materials , Lyon, FRANCE, 14-/12/2020 - 16/12/2020
Analysis of Ovalization Measurements on Flexible Airfield Pavement under HWD Dynamic Impulse Load
Non-destructive techniques (NDT) have emerged for the last decades to in-situ evaluate the pavement materials and interface conditions. These techniques turn out to be valuable tools to evaluate pavement bearing capacity, but present limitations to provide, on their own, reliable information about the interface bonding conditions. Developed in the ...
International evaluation of the performance of Warm Mix Asphalts with high Reclaimed Asphalt content
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ISBM 2020, RILEM International Symposium on Bituminous Materials , Lyon, FRANCE, 14-/12/2020 - 16/12/2020
Rheological modelling of the bitumen from reclaimed asphalt with rejuvenation and re-ageing
ISBM 2020, RILEM International Symposium on Bituminous Materials, Lyon, FRANCE, 14-/12/2020 - 16/12/2020
Groupe de pieux thermoactifs dans un écoulement aquifère : modélisation physique et numérique
Le développement de la géothermie utilisant des structures thermoactives pose des questions au sujet des interactions qui peuvent exister entre différentes installations, dues aux phénomènes d'advection induits par les déplacements de nappe. Une étude des perturbations thermiques induites entre structures est menée sur le cas test d'un groupe de ne...
Evaluating Resilient Infrastructure Systems : Task Force 3 Infrastructure Investment and Financing
Urban 20 Mayors Summit - U20, RIYAD, ARABIE SAOUDITE, 29-/10/2020 - 30/10/2020
