COLAS, A-S.1, BRIERE, R.2, FERAILLE, A.3, HABERT, G.4, TARDIVEL, Y.5

1 Dr, Université Paris-Est, Ifsttar, Département Matériaux et Structures, anne-sophie.colas@ifsttar.fr

2 PhD candidate, Université Paris-Est, ENPC, Laboratoire Navier (UMR 8205), raphael.briere@enpc.fr

3 Dr, Université Paris-Est, ENPC, Laboratoire Navier (UMR 8205), adelaide.feraille@enpc.fr

4 Professor, ETH Zürich, Department of Civil, Environmental and Geomatic Engineering, habertg@ethz.ch

5 Engineer, Cerema, Direction Technique Infrastructures de Transport et Matériaux, yannick.tardivel@cerema.fr

This paper presents the sustainable development analysis undertaken during the recent construction of a new masonry road bridge in the department of Lozère (France). First, the specific construction process of this masonry bridge is exposed. Then, the ecologic and economic impacts of the construction are evaluated through a life cycle assessment and a life cycle cost, and compared to those of a precast concrete bridge solution. Our results show that maintenance consideration is essential to address efficiently the sustainability aspects embedded in stone construction. Recommendations on the use of masonry in modern constructions are finally drawn.

Keywords: Masonry arch bridge, life cycle assessment, life cycle cost.