期刊
SUSTAINABILITY
卷 11, 期 24, 页码 -出版社
MDPI
DOI: 10.3390/su11246923
关键词
UHPFRC; LCA; sustainability; UHMW-PE fibers; rehabilitation; strengthening
资金
- Swiss National Science Foundation through the National Research Program Energy Turnaround [407040_154063/1, NRP 70]
- Swiss National Science Foundation (SNF) [407040_154063] Funding Source: Swiss National Science Foundation (SNF)
(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.
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