Climate impacts from road bridges: effects of introducing concrete carbonation and biogenic carbon storage in wood

Peñaloza, Diego; Erlandsson, Martin; Pousette, Anna

doi:10.1080/15732479.2017.1327545

Cited by 18 publications

(10 citation statements)

References 19 publications

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“…Either, it was suggested that a sensitivity analysis be made in additional research (Hasan et al 2020) or a sensitivity analysis (Bizjak et al 2017;Bizjak and Lenart 2018;Santos et al 2018aSantos et al , 2019 or uncertainty analysis (Umer et al 2017) was included. Two papers used expert estimations (Peñaloza et al 2018;Iwase et al 2020). In this review, expert estimations were considered a current practice approach (in 3.3.1); however, experts could consider special characteristics of the innovative materials in their assessments.…”

Section: At Least One Of the Alternatives Is An Innovative Constructi...mentioning

confidence: 99%

Including maintenance in life cycle assessment of road and rail infrastructure—a literature review

Liljenström

Björklund

Toller

2022

Int J Life Cycle Assess

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Purpose LCA is increasingly used in infrastructure policy and planning. This study maps approaches used in comparative LCA of road and rail infrastructure to (1) determine the length of the analysis period, (2) estimate the maintenance frequency, and (3) include the effects of climate change on infrastructure performance. A LCA may need to fulfil different requirements in different decision-contexts. The relevance of the approaches for decision-making in policy and procurement is therefore discussed. Methods Ninety-two comparative LCAs of road and rail infrastructure published in peer-reviewed journals January 2016–July 2020 were reviewed. Papers were found through a systematic process of searching electronic databases, applying inclusion criteria, and conducting backward and forward snowballing. Results and discussion The analysis period was commonly determined based on infrastructure service life. The maintenance frequency was estimated based on current practice, laboratory tests, modelling, or scenarios. The effects of climate change were considered in two papers by comparing results in a control case and in a changed climate. In policy and procurement, current practice approaches are not adapted to innovative solutions or to climate change. Modelling and laboratory tests could improve calculations of the maintenance phase but might have some limitations related to innovative solutions. Scenarios could be readily applied in a policy context; however, in procurement, consistent and generic scenarios should be used. Conclusions Results suggest what approaches could be used to account for maintenance in infrastructure LCA depending on the decision-context. The LCA community is suggested to research other approaches than current practice to account for long analysis periods, climate change, and innovative solutions. Additionally, literature not covered here could be reviewed for additional approaches and perspectives. Examples include stand-alone LCAs, method development papers, papers on the individual approaches and decision-contexts, certification systems, standards, and guidelines.

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Section: At Least One Of the Alternatives Is An Innovative Constructi...mentioning

confidence: 99%

Including maintenance in life cycle assessment of road and rail infrastructure—a literature review

Liljenström

Björklund

Toller

2022

Int J Life Cycle Assess

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“…In assessing functionally equivalent concrete and timber designs for a small road bridge in Sweden, the timber bridge resulted in 22% lower EC [18]. Taking a similar approach to residential buildings, a cradle-to-grave LCA results for a CLT-based home in 42% lower EC than its concrete alternative [19].…”

Section: Description Of the Case Studymentioning

confidence: 99%

Forest products in construction: a comparative life cycle assessment of an Italian case study

Iannaccone¹,

Pittau²,

Dotelli³

2021

tema

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“…In an assessment of functionally equivalent concrete and timber designs for a small road bridge in Sweden, the timber bridge had a 22% lower EC [23]. Taking a similar approach to residential buildings, a cradle-to-grave LCA result for a CLT-based home had 42% lower EC than its concrete counterpart [24].…”

Section: Lcas Of Buildings Using Timber Structuresmentioning

confidence: 99%

More Timber in Construction: Unanswered Questions and Future Challenges

Hart

Pomponi

2020

Sustainability

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The built environment is one of the greatest contributors to carbon emissions, climate change, and to the unsustainable pressure on the natural environment and its ecosystems. The use of more timber in construction is one possible response, and an authoritative contribution to this growing movement comes from the UK’s Committee on Climate Change, which identifies a “substantial increase in the use of wood in the construction of buildings” as a top priority. However, a global encouragement of such a strategy raises some difficult questions. Given the urgency of effective solutions for low-carbon built environments, and the likely continued growth in demand for timber in construction, this article reviews its sustainability and identifies future challenges and unanswered questions. Existing evidence points indeed towards timber as the lower carbon option when modelled through life cycle assessment without having to draw on arguments around carbon storage. Issues however remain on the timing of carbon emissions, land allocation, and the environmental loads and benefits associated with the end-of-life options: analysis of environmental product declarations for engineered timber suggests that landfill might either be the best or the worst option from a climate change perspective, depending on assumptions.

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Climate impacts from road bridges: effects of introducing concrete carbonation and biogenic carbon storage in wood

Cited by 18 publications

References 19 publications

Including maintenance in life cycle assessment of road and rail infrastructure—a literature review

Including maintenance in life cycle assessment of road and rail infrastructure—a literature review

Forest products in construction: a comparative life cycle assessment of an Italian case study

More Timber in Construction: Unanswered Questions and Future Challenges

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