Cargando…

Effect of Surface Active Agent (SAA) on 50/70 Bitumen Foaming Characteristics

To ensure the standard properties of half-warm asphalt (HWA) mixes produced with foamed bitumen, the binder needs to have the best possible characteristics. One way to attain this is to modify the bitumen before it is foamed. The 50/70 penetration bitumen used in this study, was modified with a surf...

Descripción completa

Detalles Bibliográficos
Autores principales: Iwański, Mateusz M., Chomicz-Kowalska, Anna, Maciejewski, Krzysztof
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6862554/
https://www.ncbi.nlm.nih.gov/pubmed/31717740
http://dx.doi.org/10.3390/ma12213514
_version_ 1783471581257793536
author Iwański, Mateusz M.
Chomicz-Kowalska, Anna
Maciejewski, Krzysztof
author_facet Iwański, Mateusz M.
Chomicz-Kowalska, Anna
Maciejewski, Krzysztof
author_sort Iwański, Mateusz M.
collection PubMed
description To ensure the standard properties of half-warm asphalt (HWA) mixes produced with foamed bitumen, the binder needs to have the best possible characteristics. One way to attain this is to modify the bitumen before it is foamed. The 50/70 penetration bitumen used in this study, was modified with a surface active agent (SAA) at different rates (0.2%, 0.4%, and 0.6% by wt.). The effect of the modifier on the bitumen properties (penetration, softening point, the Fraass breaking point, dynamic viscosity at 60 °C, 90 °C, and 135 °C) and on the binder foaming parameters (expansion ratio - ER, half-life - HL, foam index - FI) was investigated and the optimum quantity of foaming water was determined. Statistical analysis of the results showed that the addition of 0.6% SAA had the most beneficial effect on the set of 50/70 bitumen standard properties and foaming characteristics.
format Online
Article
Text
id pubmed-6862554
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-68625542019-12-05 Effect of Surface Active Agent (SAA) on 50/70 Bitumen Foaming Characteristics Iwański, Mateusz M. Chomicz-Kowalska, Anna Maciejewski, Krzysztof Materials (Basel) Article To ensure the standard properties of half-warm asphalt (HWA) mixes produced with foamed bitumen, the binder needs to have the best possible characteristics. One way to attain this is to modify the bitumen before it is foamed. The 50/70 penetration bitumen used in this study, was modified with a surface active agent (SAA) at different rates (0.2%, 0.4%, and 0.6% by wt.). The effect of the modifier on the bitumen properties (penetration, softening point, the Fraass breaking point, dynamic viscosity at 60 °C, 90 °C, and 135 °C) and on the binder foaming parameters (expansion ratio - ER, half-life - HL, foam index - FI) was investigated and the optimum quantity of foaming water was determined. Statistical analysis of the results showed that the addition of 0.6% SAA had the most beneficial effect on the set of 50/70 bitumen standard properties and foaming characteristics. MDPI 2019-10-26 /pmc/articles/PMC6862554/ /pubmed/31717740 http://dx.doi.org/10.3390/ma12213514 Text en © 2019 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
Iwański, Mateusz M.
Chomicz-Kowalska, Anna
Maciejewski, Krzysztof
Effect of Surface Active Agent (SAA) on 50/70 Bitumen Foaming Characteristics
title Effect of Surface Active Agent (SAA) on 50/70 Bitumen Foaming Characteristics
title_full Effect of Surface Active Agent (SAA) on 50/70 Bitumen Foaming Characteristics
title_fullStr Effect of Surface Active Agent (SAA) on 50/70 Bitumen Foaming Characteristics
title_full_unstemmed Effect of Surface Active Agent (SAA) on 50/70 Bitumen Foaming Characteristics
title_short Effect of Surface Active Agent (SAA) on 50/70 Bitumen Foaming Characteristics
title_sort effect of surface active agent (saa) on 50/70 bitumen foaming characteristics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6862554/
https://www.ncbi.nlm.nih.gov/pubmed/31717740
http://dx.doi.org/10.3390/ma12213514
work_keys_str_mv AT iwanskimateuszm effectofsurfaceactiveagentsaaon5070bitumenfoamingcharacteristics
AT chomiczkowalskaanna effectofsurfaceactiveagentsaaon5070bitumenfoamingcharacteristics
AT maciejewskikrzysztof effectofsurfaceactiveagentsaaon5070bitumenfoamingcharacteristics