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Using Life Cycle Assessment to Optimize Pavement Crack-Mitigation
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.ORCID iD: 0000-0002-4270-8993
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.ORCID iD: 0000-0002-0596-228X
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.ORCID iD: 0000-0003-0889-6078
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.ORCID iD: 0000-0003-3968-6778
2012 (English)In: Scarpas et al. (Eds.), 7th RILEM International Conference on Cracking in Pavements: Vol. 1, Delft, The Netherlands, 2012, 299-306 p.Conference paper, Published paper (Refereed)
Abstract [en]

Cracking is very common in areas having large variations in the daily temperatures and can cause large discomfort to the users. To improve the binder properties against cracking and rutting, researchers have studied for many years the behaviour of different binder additives such as polymers. It is quite complex, however, to decide on the benefits of a more expensive solution without looking at the long term performance. Life cycle assessment (LCA) studies can help to develop this long term perspective, linking performance to minimizing the overall energy consumption, use of resources and emissions. To demonstrate this, LCA of an unmodified and polymer modified asphalt pavement using a newly developed open LCA framework has been performed. It is shown how polymer modification for improved performance affects the energy consumption and emissions during the life cycle of a road. Furthermore, it is concluded that better understanding of the binder would lead to better optimized pavement design, hence reducing the energy consumption and emissions. A limit in terms of energy and emissions for the production of the polymer was also found which could help the polymer producers to improve their manufacturing processes, making them efficient enough to be beneficial from a pavement life cycle point of view.

Place, publisher, year, edition, pages
Delft, The Netherlands, 2012. 299-306 p.
Keyword [en]
asphalt, cracking, LCA
National Category
Infrastructure Engineering Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-91313Scopus ID: 2-s2.0-84874302306OAI: oai:DiVA.org:kth-91313DiVA: diva2:509488
Conference
7th RILEM Conference 2012 on cracking of asphalt, 20-22 June
Note

QC 20120926

Available from: 2012-03-13 Created: 2012-03-13 Last updated: 2012-09-26Bibliographically approved

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Butt, Ali AzharJelagin, DenisBirgisson, BjörnKringos, Nicole

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