Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texture
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/63018 |
Resumo: | Photocatalytic asphalt mixtures have the capability of mitigating air quality problems and degrade oils/greases by using semiconductors. The techniques to do so can change their functional characteristics. This study aimed to analyse the functionalization effect on the essential surface characteristics, such as macrotexture, skid resistance, and microtexture. AC 14 and AC 6 mixtures were functionalised with nano-TiO2 and micro-ZnO by spraying and bulk incorporation. Mean Profile Depth, British Pendulum and microtexture amplitude parameters were evaluated. TiO2 application seemed to smooth the surface slightly. In dry condition, the skid resistance of functionalised asphalt and control mixtures was similar. In wet condition, the functionalization caused a maximum decrease of 7% in skid resistance. The amplitude parameters were not affected by any functionalization technique except the skewness of AC 14 with 6% TiO2 by bulk incorporation. Furthermore, the application of the semiconductors can be used without high impacts in texture and skid resistance. |
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Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texturephotocatalytic asphalt mixturesmacrotexturemicrotextureskid resistanceoptical non-contact rugometric characterisationScience & TechnologyPhotocatalytic asphalt mixtures have the capability of mitigating air quality problems and degrade oils/greases by using semiconductors. The techniques to do so can change their functional characteristics. This study aimed to analyse the functionalization effect on the essential surface characteristics, such as macrotexture, skid resistance, and microtexture. AC 14 and AC 6 mixtures were functionalised with nano-TiO2 and micro-ZnO by spraying and bulk incorporation. Mean Profile Depth, British Pendulum and microtexture amplitude parameters were evaluated. TiO2 application seemed to smooth the surface slightly. In dry condition, the skid resistance of functionalised asphalt and control mixtures was similar. In wet condition, the functionalization caused a maximum decrease of 7% in skid resistance. The amplitude parameters were not affected by any functionalization technique except the skewness of AC 14 with 6% TiO2 by bulk incorporation. Furthermore, the application of the semiconductors can be used without high impacts in texture and skid resistance.This work was partially financed by FCT (Fundacao para a Ciencia e a Tecnologia) under the project [PTDC/FIS/120412/2010]: "Nanobased concepts for Innovative & Eco-sustainable constructive material's surfaces" and project [PEst-OE/ECI/UI4047/2014]. Also, the first author would like to acknowledge FCT for the PhD scholarship [SFRH/BD/137421/2018].Taylor & Francis LtdUniversidade do MinhoRocha Segundo, I.Landi, S., Jr.Oliveira, S.Freitas, E. F.Costa, Manuel F. M.Carneiro, Joaquim A. O.20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/63018engI. Rocha Segundo, S. Landi Jr., S. Oliveira, E. Freitas, M.F. Costa & J. Carneiro (2019) Photocatalytic asphalt mixtures: semiconductors’ impact in skid resistance and texture, Road Materials and Pavement Design, 20:sup2, S578-S589, DOI: 10.1080/14680629.2019.16243981468-062910.1080/14680629.2019.1624398info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-30T01:24:44Zoai:repositorium.sdum.uminho.pt:1822/63018Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:11:37.040465Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texture |
title |
Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texture |
spellingShingle |
Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texture Rocha Segundo, I. photocatalytic asphalt mixtures macrotexture microtexture skid resistance optical non-contact rugometric characterisation Science & Technology |
title_short |
Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texture |
title_full |
Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texture |
title_fullStr |
Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texture |
title_full_unstemmed |
Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texture |
title_sort |
Photocatalytic asphalt mixtures: semiconductors' impact in skid resistance and texture |
author |
Rocha Segundo, I. |
author_facet |
Rocha Segundo, I. Landi, S., Jr. Oliveira, S. Freitas, E. F. Costa, Manuel F. M. Carneiro, Joaquim A. O. |
author_role |
author |
author2 |
Landi, S., Jr. Oliveira, S. Freitas, E. F. Costa, Manuel F. M. Carneiro, Joaquim A. O. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Rocha Segundo, I. Landi, S., Jr. Oliveira, S. Freitas, E. F. Costa, Manuel F. M. Carneiro, Joaquim A. O. |
dc.subject.por.fl_str_mv |
photocatalytic asphalt mixtures macrotexture microtexture skid resistance optical non-contact rugometric characterisation Science & Technology |
topic |
photocatalytic asphalt mixtures macrotexture microtexture skid resistance optical non-contact rugometric characterisation Science & Technology |
description |
Photocatalytic asphalt mixtures have the capability of mitigating air quality problems and degrade oils/greases by using semiconductors. The techniques to do so can change their functional characteristics. This study aimed to analyse the functionalization effect on the essential surface characteristics, such as macrotexture, skid resistance, and microtexture. AC 14 and AC 6 mixtures were functionalised with nano-TiO2 and micro-ZnO by spraying and bulk incorporation. Mean Profile Depth, British Pendulum and microtexture amplitude parameters were evaluated. TiO2 application seemed to smooth the surface slightly. In dry condition, the skid resistance of functionalised asphalt and control mixtures was similar. In wet condition, the functionalization caused a maximum decrease of 7% in skid resistance. The amplitude parameters were not affected by any functionalization technique except the skewness of AC 14 with 6% TiO2 by bulk incorporation. Furthermore, the application of the semiconductors can be used without high impacts in texture and skid resistance. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2019-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/63018 |
url |
https://hdl.handle.net/1822/63018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
I. Rocha Segundo, S. Landi Jr., S. Oliveira, E. Freitas, M.F. Costa & J. Carneiro (2019) Photocatalytic asphalt mixtures: semiconductors’ impact in skid resistance and texture, Road Materials and Pavement Design, 20:sup2, S578-S589, DOI: 10.1080/14680629.2019.1624398 1468-0629 10.1080/14680629.2019.1624398 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Taylor & Francis Ltd |
publisher.none.fl_str_mv |
Taylor & Francis Ltd |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132548472766464 |