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Title:

Effect of Aging in Fatigue Behavior of Asphalt Binder, Mastic, and Mixture

Accession Number:

01550090

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

The aging of asphalt binders from exposure to environmental conditions significantly affects the final performance of the asphalt mixture that is layered in the pavement. This effect on the fatigue behavior of the mixture and its sensitivity to temperature changes is highly significant. Evaluating these properties on mixtures using the procedures described in the UNE EN standard could be very time consuming. This document presents the efforts carried out to evaluate the effect of aging on the fatigue behavior of three binders, mastics and mixtures at different temperatures (+10, +3 and -5ºC). A strain sweep test that allows fatigue related parameters for these materials to be obtained in a short testing time was employed. Results have shown that the polymer modified binder (PMB) provides the best fatigue results, even though the characterization parameters, penetration and softening point temperature suggested that it was the most damaged by the aging procedures. In general aging increases the stiffness of asphalt materials. The PMB obtained the best results at all temperatures and aging stages; however, the differences noticed at -5ºC were very small. A new concept called Equivalent Layer Thickness (ELT), which is used to quantify the loss of fatigue resistance of mixtures, has been developed. The PMB mixture obtained the best ELT values in all cases; but as previously mentioned the differences at low temperatures were minimal. The authors suggest that even though PMBs produce the best fatigue resistant asphalt materials, their performance at low temperatures when aged should be improved.

Supplemental Notes:

This paper was sponsored by TRB committee AFK20 Characteristics of Asphalt Materials. Alternate title: Effect of Aging in the Fatigue Behavior of Asphalt Binder, Mastic, and Mixture.

Monograph Accession #:

01550057

Report/Paper Numbers:

15-1744

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Botella, Ramón
Pérez-Jiménez, Félix

ORCID 0000-0001-5194-9409

Miró, Rodrigo
Martínez, Adriana
Paez-Dueñas, Antonio
Barceló-Martínez, Francisco José
Carrera, Virgina

Pagination:

16p

Publication Date:

2015

Conference:

Transportation Research Board 94th Annual Meeting

Location: Washington DC, United States
Date: 2015-1-11 to 2015-1-15
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Subject Areas:

Highways; Materials; Pavements; I31: Bituminous Binders and Materials

Source Data:

Transportation Research Board Annual Meeting 2015 Paper #15-1744

Files:

TRIS, TRB, ATRI

Created Date:

Dec 30 2014 12:38PM