Assessment of the Environmental Impacts of Bridge Designs Involving UHPFRC

Ultra-High-Performance Fibre-Reinforced Cementitious Composite (UHPFRC) has been developed to design lightweight structures and enhance existing designs. As the environmental footprint of the construction industry must be significantly reduced, the potential to lower environmental impacts of structu...

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Autores principales:	Numa Bertola, Célia Küpfer, Edgar Kälin, Eugen Brühwiler
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ultra-high-performance fibre-reinforced cementitious composite life cycle analysis structural UHPFRC composite structures prefabricated bridge elements Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ac4bbd5fe90d4d4297c9e7a49e27cf67
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spelling	oai:doaj.org-article:ac4bbd5fe90d4d4297c9e7a49e27cf672021-11-25T19:00:44ZAssessment of the Environmental Impacts of Bridge Designs Involving UHPFRC10.3390/su1322123992071-1050https://doaj.org/article/ac4bbd5fe90d4d4297c9e7a49e27cf672021-11-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/22/12399https://doaj.org/toc/2071-1050Ultra-High-Performance Fibre-Reinforced Cementitious Composite (UHPFRC) has been developed to design lightweight structures and enhance existing designs. As the environmental footprint of the construction industry must be significantly reduced, the potential to lower environmental impacts of structures using UHPFRC needs to be explored. While the greenhouse gas emissions of a volume of UHPFRC are higher than that of the same volume of concrete, UHPFRC enables the reduction in the amount of material required in structural designs and improves the durability of structures. The environmental impacts of structural designs must thus be compared on the cradle-to-grave use cycle of the design at a project scale. In this study, a methodology is proposed to evaluate the ecological burdens of several bridge designs involving various structural elements in UHPFRC. The method proposes an analysis over three time horizons: first, the construction phase, then including the scheduled maintenance, and finally, adding the elimination. A case study of a short-span bridge in Switzerland is used to assess three alternatives of bridge designs: a conventional reinforced-concrete structure, a composite timber–UHPFRC bridge, and a full-UHPFRC solution. The results show that timber–UHPFRC structures can significantly reduce the environmental impacts of bridge designs, showing promising results in terms of sustainable development. The use of the methodology supports bridge owners in assessing the environmental impacts of structural designs.Numa BertolaCélia KüpferEdgar KälinEugen BrühwilerMDPI AGarticleultra-high-performance fibre-reinforced cementitious compositelife cycle analysisstructural UHPFRCcomposite structuresprefabricated bridge elementsEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 12399, p 12399 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ultra-high-performance fibre-reinforced cementitious composite life cycle analysis structural UHPFRC composite structures prefabricated bridge elements Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
spellingShingle	ultra-high-performance fibre-reinforced cementitious composite life cycle analysis structural UHPFRC composite structures prefabricated bridge elements Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Numa Bertola Célia Küpfer Edgar Kälin Eugen Brühwiler Assessment of the Environmental Impacts of Bridge Designs Involving UHPFRC
description	Ultra-High-Performance Fibre-Reinforced Cementitious Composite (UHPFRC) has been developed to design lightweight structures and enhance existing designs. As the environmental footprint of the construction industry must be significantly reduced, the potential to lower environmental impacts of structures using UHPFRC needs to be explored. While the greenhouse gas emissions of a volume of UHPFRC are higher than that of the same volume of concrete, UHPFRC enables the reduction in the amount of material required in structural designs and improves the durability of structures. The environmental impacts of structural designs must thus be compared on the cradle-to-grave use cycle of the design at a project scale. In this study, a methodology is proposed to evaluate the ecological burdens of several bridge designs involving various structural elements in UHPFRC. The method proposes an analysis over three time horizons: first, the construction phase, then including the scheduled maintenance, and finally, adding the elimination. A case study of a short-span bridge in Switzerland is used to assess three alternatives of bridge designs: a conventional reinforced-concrete structure, a composite timber–UHPFRC bridge, and a full-UHPFRC solution. The results show that timber–UHPFRC structures can significantly reduce the environmental impacts of bridge designs, showing promising results in terms of sustainable development. The use of the methodology supports bridge owners in assessing the environmental impacts of structural designs.
format	article
author	Numa Bertola Célia Küpfer Edgar Kälin Eugen Brühwiler
author_facet	Numa Bertola Célia Küpfer Edgar Kälin Eugen Brühwiler
author_sort	Numa Bertola
title	Assessment of the Environmental Impacts of Bridge Designs Involving UHPFRC
title_short	Assessment of the Environmental Impacts of Bridge Designs Involving UHPFRC
title_full	Assessment of the Environmental Impacts of Bridge Designs Involving UHPFRC
title_fullStr	Assessment of the Environmental Impacts of Bridge Designs Involving UHPFRC
title_full_unstemmed	Assessment of the Environmental Impacts of Bridge Designs Involving UHPFRC
title_sort	assessment of the environmental impacts of bridge designs involving uhpfrc
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ac4bbd5fe90d4d4297c9e7a49e27cf67
work_keys_str_mv	AT numabertola assessmentoftheenvironmentalimpactsofbridgedesignsinvolvinguhpfrc AT celiakupfer assessmentoftheenvironmentalimpactsofbridgedesignsinvolvinguhpfrc AT edgarkalin assessmentoftheenvironmentalimpactsofbridgedesignsinvolvinguhpfrc AT eugenbruhwiler assessmentoftheenvironmentalimpactsofbridgedesignsinvolvinguhpfrc
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Assessment of the Environmental Impacts of Bridge Designs Involving UHPFRC

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