Publications associées à Fosse à bitume

An advanced methodology for the mix design optimization of hot mix asphalt

André-Gilles Dumont, Sara Bressi, Manfred Partl

The bitumen quantity to add to asphalt mixtures depends on the surfaces of aggregates and filler to be coated. The formulas currently available in the literature have limitations such as considering all the fillers with the same specific surface or the agg ...

Elsevier Sci Ltd2016

Advanced methodology for optimization of mixture design of asphalt concrete containing reclaimed asphalt pavement material

Sara Bressi

Despite the massive use of Reclaimed Asphalt Pavement (RAP) in Hot Mix Asphalt (HMA) production, the chemo-physical phenomena that characterise the fabrication of these mixtures have not yet been completely explored. The detection and understanding of thes ...

EPFL2016

Asphalt Mixture with RAP: Mix Design Optimization

André-Gilles Dumont, Nicolas Bueche, Michel Pittet, Sara Bressi

The addition of reclaimed asphalt pavement (RAP) in hot mix asphalt is now common practice in Switzerland. With the increases of RAP content in asphalt mixture, the problematic of the mix design optimization becomes an important issue to be considered. The ...

Springer2016

A new laboratory methodology for optimization of mixture design of asphalt concrete containing reclaimed asphalt pavement material

André-Gilles Dumont, Sara Bressi, Manfred Partl

The reduction of virgin bitumen added to asphalt mixtures containing Reclaimed Asphalt Pavement (RAP) is based on the typical assumption that all the aged binder function in the same way as the virgin binder. However, recent studies conducted by the author ...

Springer Verlag2016

Particle clustering phenomena in hot asphalt mixtures with high content of reclaimed asphalt pavements

André-Gilles Dumont, Sara Bressi, Manfred Partl

One challenge in efficient recycling of asphalt concrete is the adherence of the reclaimed asphalt pavement (RAP) particles or clustering that inhibits fulfilling the aggregate gradation requirements. In order to investigate this phenomenon two types of mi ...

Elsevier Sci Ltd2015

GFRP-balsa sandwich bridge deck: Concept, design and experimental validation

Thomas Keller, Julia De Castro San Roman Fest, Michael Osei-Antwi

The concept, design and experimental validation of the new Avançon Bridge in Bex, Switzerland, are described. The lightweight glass fiber-reinforced polymer (GFRP) sandwich bridge deck adhesively bonded to steel girders reduced the traffic disruption perio ...

2014

GFRP-Balsa Sandwich Bridge Deck: Concept, Design, and Experimental Validation

Thomas Keller, Julia De Castro San Roman Fest, Michael Osei-Antwi

The concept, design, and experimental validation of the new Avancon Bridge in Bex, Switzerland, are described. The lightweight glass fiber-reinforced polymer (GFRP) sandwich bridge deck adhesively bonded to steel girders, reduced the traffic disruption per ...

American Society of Civil Engineers2014

Decision aid model for asphalt mixture choice

André-Gilles Dumont, Nicolas Bueche

Warm Mix Asphalt (WMA) represents widely used alternative to hot mix asphalt (HMA), this in order to decrease the energy consumption and environmental load. Numerous WMA products can be found and the choice of the most favourable mixture is not necessarily ...

2014

Asphalt mixture choice: a decision-aid model

Nicolas Bueche

Due to the continuous development of warm mix asphalts (WMA) as alternatives to hot mix asphalts (HMA), the choice of the most favourable mixture for a given project is not necessarily straightforward. When considering greenhouse gas (GHG) emissions and en ...

2012

Évaluation des performances et des impacts des enrobés bitumineux tièdes

Nicolas Bueche

By decreasing the mixing and laying temperatures, warm mix asphalts (WMA) allow a reduction of the energy consumption as well as the emissions, thus contributing to the sustainable development. However researches are necessary for these asphalt mixtures to ...

EPFL2011

Warm asphalt bituminous mixtures with regards to energy, emissions and performance

Nicolas Bueche

With the current concerns about sustainable development and greenhouse gas emissions in various fields, the road domain has also to contribute. Indeed, asphalt mixture production is a very important energy consuming phase in order to heat the aggregates an ...

2009

Effect of base bitumen composition on asphalt rubber binder properties

André-Gilles Dumont, Mehdi Ould Henia

The asphalt rubber blend properties are strongly related to its base components properties. The base bitumen composition is considered as a key factor influencing the final rheological properties of asphalt rubber binder. This paper describes results from ...

EMPA2008

Modeling of rutting in asphalt flexible pavement

André-Gilles Dumont

This paper presents a finite element analysis modeling of rutting. The behaviors of the asphalt concrete is described using an elasto-viscoplastic constitutive relation, while an elastoplastic constitutive relation is used for the lower layers. The model a ...

2007

Assessment of the rheological properties of asphalt rubber binder and its residual phases

André-Gilles Dumont, Mehdi Ould Henia

The asphalt rubber blends design is an empirical procedure and is quite sensitive to the variability of the components properties. A better understanding of the physical phenomenon involved during the curing process is a prerequisite step to propose a rati ...

2006

Modélisation et prédiction du comportement rhéologique des mélanges bitume caoutchouc

Mehdi Ould Henia

Asphalt rubber is a modified binder widely used in pavement construction. Composition design methods of asphalt rubber blends are exclusively empiric and rely on the selection of the optimal combination of parameters after a long experimental program. The ...

EPFL2005