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The Influence of Alternative Fillers on the Adhesive Properties of Mastics Fabricated with Red Mud

The adhesion between bitumen and aggregates strongly influences the lifetime of pavements. To improve adhesiveness, the road construction industry has been using additives to alter the interfacial energy and improve the affinity of materials in the presence of water. However, the water sensitivity v...

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Autores principales: Lima, Mayara S. Siverio, Thives, Liseane P., Haritonovs, Viktors, Gschösser, Florian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7013585/
https://www.ncbi.nlm.nih.gov/pubmed/31963929
http://dx.doi.org/10.3390/ma13020484
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author Lima, Mayara S. Siverio
Thives, Liseane P.
Haritonovs, Viktors
Gschösser, Florian
author_facet Lima, Mayara S. Siverio
Thives, Liseane P.
Haritonovs, Viktors
Gschösser, Florian
author_sort Lima, Mayara S. Siverio
collection PubMed
description The adhesion between bitumen and aggregates strongly influences the lifetime of pavements. To improve adhesiveness, the road construction industry has been using additives to alter the interfacial energy and improve the affinity of materials in the presence of water. However, the water sensitivity varies according to the mixture design, since the interaction may occur differently depending on the materials chosen. As the use of alternative materials is increasing in road constructions, further analysis of its affinity with aggregates and bitumen is necessary. In that sense, this study evaluates the adhesion performance of mastics mixed with traditional fillers, such as limestone and dolomite, and residues, such as fly ash and red mud. To assess possible interactions with the red mud, the fillers are mixed in distinct percentages and tested for adhesiveness, wettability, penetration, and softening point. The results show the importance of hydrophilicity, asphalt viscosity, and physical–chemical properties to define adhesive interactions.
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spelling pubmed-70135852020-03-09 The Influence of Alternative Fillers on the Adhesive Properties of Mastics Fabricated with Red Mud Lima, Mayara S. Siverio Thives, Liseane P. Haritonovs, Viktors Gschösser, Florian Materials (Basel) Article The adhesion between bitumen and aggregates strongly influences the lifetime of pavements. To improve adhesiveness, the road construction industry has been using additives to alter the interfacial energy and improve the affinity of materials in the presence of water. However, the water sensitivity varies according to the mixture design, since the interaction may occur differently depending on the materials chosen. As the use of alternative materials is increasing in road constructions, further analysis of its affinity with aggregates and bitumen is necessary. In that sense, this study evaluates the adhesion performance of mastics mixed with traditional fillers, such as limestone and dolomite, and residues, such as fly ash and red mud. To assess possible interactions with the red mud, the fillers are mixed in distinct percentages and tested for adhesiveness, wettability, penetration, and softening point. The results show the importance of hydrophilicity, asphalt viscosity, and physical–chemical properties to define adhesive interactions. MDPI 2020-01-19 /pmc/articles/PMC7013585/ /pubmed/31963929 http://dx.doi.org/10.3390/ma13020484 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lima, Mayara S. Siverio
Thives, Liseane P.
Haritonovs, Viktors
Gschösser, Florian
The Influence of Alternative Fillers on the Adhesive Properties of Mastics Fabricated with Red Mud
title The Influence of Alternative Fillers on the Adhesive Properties of Mastics Fabricated with Red Mud
title_full The Influence of Alternative Fillers on the Adhesive Properties of Mastics Fabricated with Red Mud
title_fullStr The Influence of Alternative Fillers on the Adhesive Properties of Mastics Fabricated with Red Mud
title_full_unstemmed The Influence of Alternative Fillers on the Adhesive Properties of Mastics Fabricated with Red Mud
title_short The Influence of Alternative Fillers on the Adhesive Properties of Mastics Fabricated with Red Mud
title_sort influence of alternative fillers on the adhesive properties of mastics fabricated with red mud
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7013585/
https://www.ncbi.nlm.nih.gov/pubmed/31963929
http://dx.doi.org/10.3390/ma13020484
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