Evaluating the effect of amine-based anti-stripping agent on the fatigue life of asphalt pavements
Aggregate-binder adhesiveness is a property that can affect the service life of asphalt pavements. In order to reduce the effects of the loss of adhesion between aggregates and binders over time, lime or amine-based anti-stripping agents are commonly used. The objective of this paper is to evaluate the impact of using an amine-based anti-stripping agent on the fatigue life of asphaltic pavements. Stiffness characterisation, the Simplified Viscoelastic Continuum Damage model, and the software FlexPAVE™ were used. Two different layered structures were analysed: one with a 0.10 m asphalt layer thickness, and another with a combination of two 0.05 m asphalt layers, with the same 0.10 m total asphalt layer thickness. The 10 years fatigue simulation was considered with 1,000,100 total ESALs traffic volume, single wheel loading of 40 kN, traffic speed of 60 km/h, and constant temperature of 20°C. It was concluded that mixtures with anti-stripping agent and/or granitic aggregate showed better fatigue behaviour than mixtures with neat binder and/or phonolitic aggregate. All investigated pavements showed bottom-up predicted crack initiation. It is more recommended to use the mixtures with amine-based anti-stripping agent on the bottom asphalt layer and mixtures with neat binder on the top layer.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/44544515
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Supplemental Notes:
- © 2021 Informa UK Limited, trading as Taylor & Francis Group. Abstract reprinted with permission of Taylor & Francis.
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Authors:
- Lucas Jr, Jorge L O
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0000-0003-1184-3858
- Babadopulos, Lucas F A L
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0000-0002-9250-2635
- Soares, Jorge B
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0000-0002-2940-6309
- Souza, Leonardo T
- Publication Date: 2022-7
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 2785-2795
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Serial:
- International Journal of Pavement Engineering
- Volume: 23
- Issue Number: 8
- Publisher: Taylor & Francis
- ISSN: 1029-8436
- Serial URL: http://www.tandf.co.uk/journals/titles/10298436.html
Subject/Index Terms
- TRT Terms: Amines; Antistrip additives; Asphalt pavements; Fatigue (Mechanics)
- Identifier Terms: FlexPAVE (Computer program)
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01851131
- Record Type: Publication
- Files: TRIS
- Created Date: Jul 9 2022 3:01PM