Life Cycle Analysis of Strengthening Existing RC Structures with R-PE-UHPFRC

Amir Hajiesmaeili, Francesco Pittau, Emmanuel Denarié and Guillaume Habert
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Amir Hajiesmaeili: Maintenance and Safety of Structures, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
Francesco Pittau: Institute of Construction and Infrastructure Management, Swiss Federal Institute of Technology Zurich (ETH Zurich), CH-8093 Zurich, Switzerland
Emmanuel Denarié: Maintenance and Safety of Structures, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
Guillaume Habert: Institute of Construction and Infrastructure Management, Swiss Federal Institute of Technology Zurich (ETH Zurich), CH-8093 Zurich, Switzerland

Sustainability, 2019, vol. 11, issue 24, 1-13

Abstract: (PE)-UHPFRC, a novel strain hardening ultra high-performance fiber reinforced concrete (UHPFRC) with low clinker content, using Ultra-High Molecular Weight Polyethylene (UHMW-PE) fibers, was developed for structural applications of rehabilitation. A comprehensive life cycle assessment (LCA) was carried out to study the environmental impact of interventions on an existing bridge using PE-UHPFRC compared with conventional UHPFRC and post-tensioned reinforced concrete methods in three categories of global warming potential (GWP), cumulative energy demand (CED), and ecological scarcity (UBP). The results showed 55% and 29% decreases in the environmental impact of the PE-UHPFRC compared with reinforced concrete and conventional UHPFRC methods, respectively, which highlighted the effectiveness of this material for the rehabilitation/strengthening of structures from the viewpoint of environmental impact.

Keywords: UHPFRC; LCA; sustainability; UHMW-PE fibers; rehabilitation; strengthening (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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