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Title:

Durability of Asphalt Binders and Associated Pavement Performance

Accession Number:

01660865

Record Type:

Component

Abstract:

This paper documents and discusses durability test results for 22 asphalt cements sampled during and after construction of a number of hot-mix asphalt pavements. Residues aged in the pressure aging vessel (PAV) were tested in double-edge-notched tension (DENT), according to regular and extended bending beam rheometer (BBR and EBBR) protocols, and in between parallel plates in a dynamic shear rheometer (DSR). Surprisingly, the authors found there to be high correlations between disparate measures of durability. Practical considerations related to sample preparation time, test time and material requirements make certain assessments more advantageous than others. This paper provides an up-to-date comparison between the critical crack tip opening displacement (CTOD), extended BBR grade and grade loss, differences in limiting BBR temperatures, and a simple limiting phase angle temperature on PAV residue of extracted and recovered asphalt cement. Several binders performed poorly likely because they were contaminated with reclaimed asphalt pavement (RAP).

Supplemental Notes:

This paper was sponsored by TRB committee AFK20 Standing Committee on Asphalt Binders. Alternate title: Durability Assessments of Asphalt Cement

Report/Paper Numbers:

18-01105

Language:

English

Authors:

Angius, Ezequiel
Ding, Haibo
Hesp, Simon A M

Pagination:

2p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Subject Areas:

Highways; Materials; Pavements

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-01105

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 10:17AM