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https://hdl.handle.net/1822/88960
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Campo DC | Valor | Idioma |
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dc.contributor.author | Cabette, Marina | por |
dc.contributor.author | Micaelo, Rui | por |
dc.contributor.author | Pais, Jorge C. | por |
dc.date.accessioned | 2024-02-22T11:29:35Z | - |
dc.date.issued | 2023-11 | - |
dc.identifier.issn | 0950-0618 | por |
dc.identifier.uri | https://hdl.handle.net/1822/88960 | - |
dc.description.abstract | Road pavements are exposed to traffic and temperature effects that produce distress, mainly cracking that leads to pavement failure, after which rehabilitation actions are necessary to extend pavement life. Bio-rejuvenators have been used to recover the bitumen properties lost due to fatigue of the asphalt mixtures and ageing due to temperature variations and oxidation. Thus, this paper investigates the healing of bitumen modified with bio-oil derived from biodiesel production. One base bitumen in three different ageing stages (unaged, short and long-term ageing) was used for adding up to 3% of bio-oil to the bitumen. In addition to consistency and rheological tests to characterise the modified bitumen, fatigue resistance tests with and without rest periods were performed to assess the healing through three indexes, relating the complex shear modulus, the number of cycles to failure and the amount of damage, after a rest period. It was verified that the healing follows an exponential law with the rest period, but the number of cycles in each loading period decreases compared to the previous period. For a 15-minute rest period, the healing was limited to 26.9%, but the bio-oil contributed significantly to that restoration. | por |
dc.description.sponsorship | The authors gratefully acknowledge the Foundation for Science and Technology (FCT) for the financial support given to the first author (PhD grant reference SFRH/BD/144683/2019) and R&D units: Civil Engineering Research and Innovation for Sustainability (CERIS) – UIDB/04625/2020; Sustainability and Innovation in Structural Engineering (ISISE) – UIDB/04029/2020. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F144683%2F2019/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04625%2F2020/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04029%2F2020/PT | por |
dc.rights | closedAccess | por |
dc.subject | Bio-oil | por |
dc.subject | Bituminous materials | por |
dc.subject | Fatigue testing | por |
dc.subject | Healing index | por |
dc.title | The use of bio-oil from biodiesel production for enhancing the bitumen healing | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0950061823037510?via%3Dihub | por |
oaire.citationVolume | 409 | por |
dc.date.updated | 2024-02-08T23:44:00Z | - |
dc.identifier.eissn | 1879-0526 | por |
dc.identifier.doi | 10.1016/j.conbuildmat.2023.134033 | por |
dc.date.embargo | 10000-01-01 | - |
sdum.export.identifier | 13199 | - |
sdum.journal | Construction and Building Materials | por |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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The use of bio-oil from biodiesel production for enhancing the bitumen healing.pdf Acesso restrito! | 3,17 MB | Adobe PDF | Ver/Abrir |