The Applicability of Limiting Phase Angle Temperatures for Specifying Asphalt Binder Low Temperature Performance

The paper discusses the applicability of using limiting phase angle temperatures, measured in the Dynamic Shear Rheometer, for low temperature ranking of performance, in comparison with limiting low temperature grades in accordance with AASHTO TP 122-16 extended Bending Beam Rheometer method. During...

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Main Authors: Kristjan Lill, Karli Kontson, Andrus Aavik
Format: Article
Language:English
Published: Riga Technical University Press 2023-12-01
Series:The Baltic Journal of Road and Bridge Engineering
Subjects:
Online Access:https://bjrbe-journals.rtu.lv/article/view/8071
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author Kristjan Lill
Karli Kontson
Andrus Aavik
author_facet Kristjan Lill
Karli Kontson
Andrus Aavik
author_sort Kristjan Lill
collection DOAJ
description The paper discusses the applicability of using limiting phase angle temperatures, measured in the Dynamic Shear Rheometer, for low temperature ranking of performance, in comparison with limiting low temperature grades in accordance with AASHTO TP 122-16 extended Bending Beam Rheometer method. During this study, also other low-temperature test methods were compared to each other. For this purpose, 13 asphalt binders were sourced from around North-Eastern Europe, twelve of which are currently used throughout Estonia as well as the neighbouring countries. The thirteenth was a high-quality Laguna Venezuela binder that is no longer commercially available in the region but was deemed suitable for comparison. Samples were tested to measure their needle penetration, Superpave Grades, Fraass breaking points, AASHTO TP 122-16 limiting low temperature grades and limiting 30° phase angle temperatures. Additionally, a correlation found in previous work was applied to the set of samples studied in this paper. Of the binders tested, the low temperature behaviour of the Venezuelan binder stands out with better performance. The analysis suggests that the twelve commercially available binders are from a similar source which was observed through their tendency to undergo thermo-reversible aging. The study shows that the phase angle approach provides a reasonable surrogate for the AASHTO TP 122-16 limiting low temperature grade. However, the latter should currently remain the preferred approach.
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publisher Riga Technical University Press
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series The Baltic Journal of Road and Bridge Engineering
spelling doaj-art-a9d3b0cd2925453e9873f5df436457a02025-01-03T00:17:53ZengRiga Technical University PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882023-12-0118416618410.7250/bjrbe.2023-18.6233422The Applicability of Limiting Phase Angle Temperatures for Specifying Asphalt Binder Low Temperature PerformanceKristjan Lill0Karli Kontson1Andrus Aavik2Department of Civil Engineering and Architecture, Road Engineering and Geodesy Research Group, Tallinn University of Technology, Tallinn, EstoniaDepartment of Civil Engineering and Architecture, Road Engineering and Geodesy Research Group, Tallinn University of Technology, Tallinn, EstoniaDepartment of Civil Engineering and Architecture, Road Engineering and Geodesy Research Group, Tallinn University of Technology, Tallinn, EstoniaThe paper discusses the applicability of using limiting phase angle temperatures, measured in the Dynamic Shear Rheometer, for low temperature ranking of performance, in comparison with limiting low temperature grades in accordance with AASHTO TP 122-16 extended Bending Beam Rheometer method. During this study, also other low-temperature test methods were compared to each other. For this purpose, 13 asphalt binders were sourced from around North-Eastern Europe, twelve of which are currently used throughout Estonia as well as the neighbouring countries. The thirteenth was a high-quality Laguna Venezuela binder that is no longer commercially available in the region but was deemed suitable for comparison. Samples were tested to measure their needle penetration, Superpave Grades, Fraass breaking points, AASHTO TP 122-16 limiting low temperature grades and limiting 30° phase angle temperatures. Additionally, a correlation found in previous work was applied to the set of samples studied in this paper. Of the binders tested, the low temperature behaviour of the Venezuelan binder stands out with better performance. The analysis suggests that the twelve commercially available binders are from a similar source which was observed through their tendency to undergo thermo-reversible aging. The study shows that the phase angle approach provides a reasonable surrogate for the AASHTO TP 122-16 limiting low temperature grade. However, the latter should currently remain the preferred approach.https://bjrbe-journals.rtu.lv/article/view/8071asphalt binderdynamic shear rheometerextended bending beam rheometerfraass breaking pointlow temperature performancephase angle
spellingShingle Kristjan Lill
Karli Kontson
Andrus Aavik
The Applicability of Limiting Phase Angle Temperatures for Specifying Asphalt Binder Low Temperature Performance
The Baltic Journal of Road and Bridge Engineering
asphalt binder
dynamic shear rheometer
extended bending beam rheometer
fraass breaking point
low temperature performance
phase angle
title The Applicability of Limiting Phase Angle Temperatures for Specifying Asphalt Binder Low Temperature Performance
title_full The Applicability of Limiting Phase Angle Temperatures for Specifying Asphalt Binder Low Temperature Performance
title_fullStr The Applicability of Limiting Phase Angle Temperatures for Specifying Asphalt Binder Low Temperature Performance
title_full_unstemmed The Applicability of Limiting Phase Angle Temperatures for Specifying Asphalt Binder Low Temperature Performance
title_short The Applicability of Limiting Phase Angle Temperatures for Specifying Asphalt Binder Low Temperature Performance
title_sort applicability of limiting phase angle temperatures for specifying asphalt binder low temperature performance
topic asphalt binder
dynamic shear rheometer
extended bending beam rheometer
fraass breaking point
low temperature performance
phase angle
url https://bjrbe-journals.rtu.lv/article/view/8071
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AT karlikontson theapplicabilityoflimitingphaseangletemperaturesforspecifyingasphaltbinderlowtemperatureperformance
AT andrusaavik theapplicabilityoflimitingphaseangletemperaturesforspecifyingasphaltbinderlowtemperatureperformance
AT kristjanlill applicabilityoflimitingphaseangletemperaturesforspecifyingasphaltbinderlowtemperatureperformance
AT karlikontson applicabilityoflimitingphaseangletemperaturesforspecifyingasphaltbinderlowtemperatureperformance
AT andrusaavik applicabilityoflimitingphaseangletemperaturesforspecifyingasphaltbinderlowtemperatureperformance