Nanoscale Quantification of Moisture Susceptibility of Paving Asphalts
Moisture-induced damage due to stripping is one of the major concerns to the highway agencies in recent years. In this study, nanoscopic investigations were carried out to examine the effects of moisture in asphalt binders. An Atomic Force Microscope (AFM) was used to estimate the asphalt binder’s m...
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EDP Sciences
2019-01-01
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doaj-3bcd0119e8be47f8949bf7fd42dc23662021-02-02T06:07:03ZengEDP SciencesMATEC Web of Conferences2261-236X2019-01-012710300510.1051/matecconf/201927103005matecconf_tran-set2019_03005Nanoscale Quantification of Moisture Susceptibility of Paving AsphaltsRoy Sumon0Hossain Zahid1College of Engineering, Arkansas State UniversityCollege of Engineering, Arkansas State UniversityMoisture-induced damage due to stripping is one of the major concerns to the highway agencies in recent years. In this study, nanoscopic investigations were carried out to examine the effects of moisture in asphalt binders. An Atomic Force Microscope (AFM) was used to estimate the asphalt binder’s modulus and adhesion values, which were believed to be indicators of binder’s resistance to moisture damage. To this end, two Performance Grade (PG) binders and their modified counterparts using polyphosphoric acid (PPA), styrene-butadiene-styrene (SBS), and SBS plus PPA were tested in this study. Test results show significant reductions of adhesion and modulus values after water immersion of the asphalt binders. AFM data also reveals that SBS-modified binders exhibit better moisture resistance compared to the base binder. Findings of this study are expected to help transportation professionals to achieve a better understanding of moisture damage of asphalt binders at a molecular level and their suitability in pavements.https://www.matec-conferences.org/articles/matecconf/pdf/2019/20/matecconf_tran-set2019_03005.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Roy Sumon Hossain Zahid |
spellingShingle |
Roy Sumon Hossain Zahid Nanoscale Quantification of Moisture Susceptibility of Paving Asphalts MATEC Web of Conferences |
author_facet |
Roy Sumon Hossain Zahid |
author_sort |
Roy Sumon |
title |
Nanoscale Quantification of Moisture Susceptibility of Paving Asphalts |
title_short |
Nanoscale Quantification of Moisture Susceptibility of Paving Asphalts |
title_full |
Nanoscale Quantification of Moisture Susceptibility of Paving Asphalts |
title_fullStr |
Nanoscale Quantification of Moisture Susceptibility of Paving Asphalts |
title_full_unstemmed |
Nanoscale Quantification of Moisture Susceptibility of Paving Asphalts |
title_sort |
nanoscale quantification of moisture susceptibility of paving asphalts |
publisher |
EDP Sciences |
series |
MATEC Web of Conferences |
issn |
2261-236X |
publishDate |
2019-01-01 |
description |
Moisture-induced damage due to stripping is one of the major concerns to the highway agencies in recent years. In this study, nanoscopic investigations were carried out to examine the effects of moisture in asphalt binders. An Atomic Force Microscope (AFM) was used to estimate the asphalt binder’s modulus and adhesion values, which were believed to be indicators of binder’s resistance to moisture damage. To this end, two Performance Grade (PG) binders and their modified counterparts using polyphosphoric acid (PPA), styrene-butadiene-styrene (SBS), and SBS plus PPA were tested in this study. Test results show significant reductions of adhesion and modulus values after water immersion of the asphalt binders. AFM data also reveals that SBS-modified binders exhibit better moisture resistance compared to the base binder. Findings of this study are expected to help transportation professionals to achieve a better understanding of moisture damage of asphalt binders at a molecular level and their suitability in pavements. |
url |
https://www.matec-conferences.org/articles/matecconf/pdf/2019/20/matecconf_tran-set2019_03005.pdf |
work_keys_str_mv |
AT roysumon nanoscalequantificationofmoisturesusceptibilityofpavingasphalts AT hossainzahid nanoscalequantificationofmoisturesusceptibilityofpavingasphalts |
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