Publicação
Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process
| Resumo: | Titanium Dioxide (TiO2) semiconductor material and Polytetrafluorethylene (PTFE) have been applied in the form of nano/microparticles over asphalt road pavements to provide them with new surface functionalities. This is a FUNCTIONALIZATION process that aims to improve the sustainable characteristics of the asphalt mixtures through the photocatalytic, superhydrophobic, and self-cleaning capabilities, which are related to the degradation of hazardous pollutants from the atmosphere (NOx, SO2, among others) for environmental remediation and the cleaning of the road surface (dust, greases, and oils) for the mitigation of the decrease of friction. Thus, in this research work, dispersions containing TiO2 nanoparticles and PTFE microparticles were sprayed over an AC 10 asphalt mixture to coat and functionalize it. To confirm the photocatalysis, super hydrophobicity, and self-cleaning capacities, this smart material performance was evaluated under the degradation of the organic compound Rhodamine B (RhB) as a pollutant model and Water Contact Angle (WCA). The results indicate the photodegradation of the pollutant, confirming the proper functioning of the functionalization process, and a WCA of 150°, proving that the nanoparticles were well dispersed just over the surface of the asphalt mixture. In general, this multidisciplinary research contributes to social and environmental enhancement and enlarges the opportunities for applications of nanomaterials in a very large-scale field such as Civil Engineering. Moreover, it showed that the surface characteristics of the asphalt pavements could be studied and improved not only with a conventional approach based on noise, friction, texture, and rolling resistance measurements but also through a physicochemical approach, as the functionalization processes, using knowledge of Materials Science. |
|---|---|
| Autores principais: | Rocha Segundo, Iran Gomes da |
| Outros Autores: | Afonso, Cátia; Lima, Orlando; Landi, Salmon; Freitas, E. F.; Carneiro, Joaquim A. O. |
| Assunto: | Functionalized asphalt mixtures Photocatalysis and self-cleaning Surface characteristics Smart coatings Sustainable road pavements |
| Ano: | 2023 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1866269087095586816 |
|---|---|
| author | Rocha Segundo, Iran Gomes da |
| author2 | Afonso, Cátia Lima, Orlando Landi, Salmon Freitas, E. F. Carneiro, Joaquim A. O. |
| author2_role | author author author author author |
| author_facet | Rocha Segundo, Iran Gomes da Afonso, Cátia Lima, Orlando Landi, Salmon Freitas, E. F. Carneiro, Joaquim A. O. |
| author_role | author |
| contributor_name_str_mv | Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Rocha Segundo, Iran Gomes da\"},{\"Person.name\":\"Afonso, Cátia\"},{\"Person.name\":\"Lima, Orlando\"},{\"Person.name\":\"Landi, Salmon\"},{\"Person.name\":\"Freitas, E. F.\"},{\"Person.name\":\"Carneiro, Joaquim A. O.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Rocha Segundo, Iran Gomes da Afonso, Cátia Lima, Orlando Landi, Salmon Freitas, E. F. Carneiro, Joaquim A. O. |
| datacite.date.Accepted.fl_str_mv | 2023-06-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2023-10-19T11:04:14Z |
| datacite.date.embargoed.fl_str_mv | 2023-10-19T11:04:14Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Functionalized asphalt mixtures Photocatalysis and self-cleaning Surface characteristics Smart coatings Sustainable road pavements |
| datacite.titles.title.fl_str_mv | Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process |
| dc.contributor.none.fl_str_mv | Universidade do Minho |
| dc.creator.none.fl_str_mv | Rocha Segundo, Iran Gomes da Afonso, Cátia Lima, Orlando Landi, Salmon Freitas, E. F. Carneiro, Joaquim A. O. |
| dc.date.Accepted.fl_str_mv | 2023-06-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2023-10-19T11:04:14Z |
| dc.date.embargoed.fl_str_mv | 2023-10-19T11:04:14Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/86991 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | CRC Press |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Functionalized asphalt mixtures Photocatalysis and self-cleaning Surface characteristics Smart coatings Sustainable road pavements |
| dc.title.fl_str_mv | Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_5794 |
| description | Titanium Dioxide (TiO2) semiconductor material and Polytetrafluorethylene (PTFE) have been applied in the form of nano/microparticles over asphalt road pavements to provide them with new surface functionalities. This is a FUNCTIONALIZATION process that aims to improve the sustainable characteristics of the asphalt mixtures through the photocatalytic, superhydrophobic, and self-cleaning capabilities, which are related to the degradation of hazardous pollutants from the atmosphere (NOx, SO2, among others) for environmental remediation and the cleaning of the road surface (dust, greases, and oils) for the mitigation of the decrease of friction. Thus, in this research work, dispersions containing TiO2 nanoparticles and PTFE microparticles were sprayed over an AC 10 asphalt mixture to coat and functionalize it. To confirm the photocatalysis, super hydrophobicity, and self-cleaning capacities, this smart material performance was evaluated under the degradation of the organic compound Rhodamine B (RhB) as a pollutant model and Water Contact Angle (WCA). The results indicate the photodegradation of the pollutant, confirming the proper functioning of the functionalization process, and a WCA of 150°, proving that the nanoparticles were well dispersed just over the surface of the asphalt mixture. In general, this multidisciplinary research contributes to social and environmental enhancement and enlarges the opportunities for applications of nanomaterials in a very large-scale field such as Civil Engineering. Moreover, it showed that the surface characteristics of the asphalt pavements could be studied and improved not only with a conventional approach based on noise, friction, texture, and rolling resistance measurements but also through a physicochemical approach, as the functionalization processes, using knowledge of Materials Science. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | conferencePaper |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/c6be6453-0130-4870-a60b-0ccda91ffbf4/download |
| id | rum_5207b557dc509e56fb2aed9cbcd01741 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/86991 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/86991 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Rocha Segundo, Iran Gomes da Afonso, Cátia Lima, Orlando Landi, Salmon Freitas, E. F. Carneiro, Joaquim A. O. |
| publishDate | 2023 |
| publisher.none.fl_str_mv | CRC Press |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engCRC PressporTitanium Dioxide (TiO2) semiconductor material and Polytetrafluorethylene (PTFE) have been applied in the form of nano/microparticles over asphalt road pavements to provide them with new surface functionalities. This is a FUNCTIONALIZATION process that aims to improve the sustainable characteristics of the asphalt mixtures through the photocatalytic, superhydrophobic, and self-cleaning capabilities, which are related to the degradation of hazardous pollutants from the atmosphere (NOx, SO2, among others) for environmental remediation and the cleaning of the road surface (dust, greases, and oils) for the mitigation of the decrease of friction. Thus, in this research work, dispersions containing TiO2 nanoparticles and PTFE microparticles were sprayed over an AC 10 asphalt mixture to coat and functionalize it. To confirm the photocatalysis, super hydrophobicity, and self-cleaning capacities, this smart material performance was evaluated under the degradation of the organic compound Rhodamine B (RhB) as a pollutant model and Water Contact Angle (WCA). The results indicate the photodegradation of the pollutant, confirming the proper functioning of the functionalization process, and a WCA of 150°, proving that the nanoparticles were well dispersed just over the surface of the asphalt mixture. In general, this multidisciplinary research contributes to social and environmental enhancement and enlarges the opportunities for applications of nanomaterials in a very large-scale field such as Civil Engineering. Moreover, it showed that the surface characteristics of the asphalt pavements could be studied and improved not only with a conventional approach based on noise, friction, texture, and rolling resistance measurements but also through a physicochemical approach, as the functionalization processes, using knowledge of Materials Science.application/pdfporAre there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization processRocha Segundo, Iran Gomes daAfonso, CátiaLima, OrlandoLandi, SalmonFreitas, E. F.Carneiro, Joaquim A. O.HostingInstitutionOrganizationalUniversidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptISBNIsPartOf9781003429258DOIIsPartOf10.1201/9781003429258-342023-10-19T11:04:14Z2023-062023-06-01T00:00:00ZHandlehttps://hdl.handle.net/1822/86991http://purl.org/coar/access_right/c_abf2open accessFunctionalized asphalt mixturesPhotocatalysis and self-cleaningSurface characteristicsSmart coatingsSustainable road pavements551065 bytesother research producthttp://purl.org/coar/resource_type/c_5794conference paperhttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorium.uminho.pt/bitstreams/c6be6453-0130-4870-a60b-0ccda91ffbf4/download |
| spellingShingle | Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process Rocha Segundo, Iran Gomes da Functionalized asphalt mixtures Photocatalysis and self-cleaning Surface characteristics Smart coatings Sustainable road pavements |
| status | SINGLETON |
| subject.fl_str_mv | Functionalized asphalt mixtures Photocatalysis and self-cleaning Surface characteristics Smart coatings Sustainable road pavements |
| title | Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process |
| title_full | Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process |
| title_fullStr | Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process |
| title_full_unstemmed | Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process |
| title_short | Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process |
| title_sort | Are there new ways to improve the asphalt mixtures' surface functions? For sure! By functionalization process |
| topic | Functionalized asphalt mixtures Photocatalysis and self-cleaning Surface characteristics Smart coatings Sustainable road pavements |
| topic_facet | Functionalized asphalt mixtures Photocatalysis and self-cleaning Surface characteristics Smart coatings Sustainable road pavements |
| url | https://hdl.handle.net/1822/86991 |
| visible | 1 |