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Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO(2)
Aging by oxidation of asphalt roadway material promotes changes in its physical, chemical, and rheological properties, affecting its hardening and accelerating the degradation of its corresponding asphalt mixture. Titanium dioxide (TiO(2)) has been applied in engineering investigations to promote an...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9145936/ https://www.ncbi.nlm.nih.gov/pubmed/35630901 http://dx.doi.org/10.3390/nano12101678 |
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author | Lima, Orlando Afonso, Cátia Rocha Segundo, Iran Landi, Salmon Homem, Natália C. Freitas, Elisabete Alcantara, Amanda Branco, Verônica Castelo Soares, Sandra Soares, Jorge Teixeira, Vasco Carneiro, Joaquim |
author_facet | Lima, Orlando Afonso, Cátia Rocha Segundo, Iran Landi, Salmon Homem, Natália C. Freitas, Elisabete Alcantara, Amanda Branco, Verônica Castelo Soares, Sandra Soares, Jorge Teixeira, Vasco Carneiro, Joaquim |
author_sort | Lima, Orlando |
collection | PubMed |
description | Aging by oxidation of asphalt roadway material promotes changes in its physical, chemical, and rheological properties, affecting its hardening and accelerating the degradation of its corresponding asphalt mixture. Titanium dioxide (TiO(2)) has been applied in engineering investigations to promote anti-aging and photocatalytic properties. In this study, a commercial binder was modified with nano-TiO(2) (using contents of 0.1, 0.25, 0.5, 1, 2, 3, and 6%). It was evaluated by physicochemical and rheological tests (penetration, softening point, mass loss, dynamic viscosity, rheology, and Fourier transform infrared spectroscopy—FTIR) before and after aging by rolling thin-film oven test (RTFOT) and pressure aging vessel (PAV). The results indicated that incorporating nano-TiO(2) mitigates binder aging, pointing out 0.25% as an optimum modification content for the investigated asphalt binder. |
format | Online Article Text |
id | pubmed-9145936 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-91459362022-05-29 Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO(2) Lima, Orlando Afonso, Cátia Rocha Segundo, Iran Landi, Salmon Homem, Natália C. Freitas, Elisabete Alcantara, Amanda Branco, Verônica Castelo Soares, Sandra Soares, Jorge Teixeira, Vasco Carneiro, Joaquim Nanomaterials (Basel) Article Aging by oxidation of asphalt roadway material promotes changes in its physical, chemical, and rheological properties, affecting its hardening and accelerating the degradation of its corresponding asphalt mixture. Titanium dioxide (TiO(2)) has been applied in engineering investigations to promote anti-aging and photocatalytic properties. In this study, a commercial binder was modified with nano-TiO(2) (using contents of 0.1, 0.25, 0.5, 1, 2, 3, and 6%). It was evaluated by physicochemical and rheological tests (penetration, softening point, mass loss, dynamic viscosity, rheology, and Fourier transform infrared spectroscopy—FTIR) before and after aging by rolling thin-film oven test (RTFOT) and pressure aging vessel (PAV). The results indicated that incorporating nano-TiO(2) mitigates binder aging, pointing out 0.25% as an optimum modification content for the investigated asphalt binder. MDPI 2022-05-14 /pmc/articles/PMC9145936/ /pubmed/35630901 http://dx.doi.org/10.3390/nano12101678 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Lima, Orlando Afonso, Cátia Rocha Segundo, Iran Landi, Salmon Homem, Natália C. Freitas, Elisabete Alcantara, Amanda Branco, Verônica Castelo Soares, Sandra Soares, Jorge Teixeira, Vasco Carneiro, Joaquim Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO(2) |
title | Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO(2) |
title_full | Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO(2) |
title_fullStr | Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO(2) |
title_full_unstemmed | Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO(2) |
title_short | Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO(2) |
title_sort | asphalt binder “skincare”? aging evaluation of an asphalt binder modified by nano-tio(2) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9145936/ https://www.ncbi.nlm.nih.gov/pubmed/35630901 http://dx.doi.org/10.3390/nano12101678 |
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