A new molecular dynamics-like modelling approach aimed at simulating the mechanical behaviour of true polyhedra dense assemblies is presented. Thanks to an improved version of the Gilbert-Johnson-Keerthi contact detection algorithm called GJK - TD, this approach involves no edge or corner rounding and accounts for multipoint face - face or edge - f...
This test method covers the laboratory determination of the swelling potential and the residual free expansion of concrete extracted from structures affected by alkali silica reactions.
Velocity stepping experiments have been performed on a simulated calcite gouge using an annular shear apparatus to investigate the effect of dissolution on the frictional properties of a carbonate fault. The tested material was put in contact with hydrochloric acid at different concentration in order to provoke grains dissolution prior to the exper...
Bentonite pellet mixtures are considered as one of the candidate sealing materials for deep geological disposals of radioactive waste. One of the particularities of this material is the initial heterogeneous distribution of pellets and porosity within the mixture, leading to complex hydro-mechanical behaviour. In this paper, the hydro-mechanical pr...
of dredged sediments has been quantified by measuring their concentrations of heavy metals, several distinct pollutants, specific granular fractions and organic content at various locations in the Seine River watershed over three years (2015e2017). It has been shown that the sediment deposit does not significantly change from one year to the next, ...
of dredged sediments has been quantified by measuring their concentrations of heavy metals, several distinct pollutants, specific granular fractions and organic content at various locations in the Seine River watershed over three years (2015e2017). It has been shown that the sediment deposit does not significantly change from one year to the next, ...
Les émulsions de bitume, dispersions de gouttelettes de bitume dans une phase aqueuse, sont utilisées dans le domaine routier dans la fabrication d'enrobés à froid depuis des décennies. Ces matériaux à l'émulsion peuvent être employés pour diverses applications : travaux d'entretien, couche de roulement neuve (pour les trafics faibles ou moyens) ou...
15th International Congress on the Chemistry of Cement : ICCC 2019, PRAGUE, TCHÈQUE, RÉPUBLIQUE, 16-/09/2019 - 20/09/2019
Moisture damage, cracking, and deformation are the three chief distresses caused by traffic and climate during the service life of an asphalt pavement. One manifestation of moisture damage is the loss of bond between bitumen and aggregate, resulting in the displacement of the bitumen in a process called stripping. While numerous tests try to evalua...
