The Effect of Rejuvenators on RAP Mixtures: A Study Based on Multiple Scale Laboratory Test Results

H. F. Haghshenas, H. Nabizadeh, Y. R. Kim

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

Utilizing the reclaimed asphalt pavement (RAP) materials for production of asphalt mixtures are environmentally friendly and economical. One necessary step towards arriving at an efficient use of these materials is the understanding of undesired inherent characteristics of RAP such as aged (stiff) asphalt binder and inconsistent aggregate properties. Previous studies on the rejuvenating agents have reported a fairly high improvement in the engineering properties of asphalt mixtures with the high contents of RAP. The paper presents the effects of various rejuvenators on the engineering characteristics of the asphalt mixtures containing high percentage RAP (65%) with two different scales of mixture: asphalt concrete (AC) and fine aggregate matrix (FAM). Resulting experimental tests of viscoelastic stiffness and cracking behavior of asphaltic materials in both AC and FAM scales were compared.

Original languageEnglish (US)
Pages (from-to)697-707
Number of pages11
JournalGeotechnical Special Publication
Volume2016-January
Issue number270 GSP
DOIs
StatePublished - Jan 1 2016
Event2nd Geo-Chicago Conference: Geotechnics for Sustainable Energy, Geo-Chicago 2016 - Chicago, United States
Duration: Aug 14 2016Aug 18 2016

Fingerprint

Asphalt pavements
asphalt
pavement
Asphalt mixtures
Asphalt concrete
Asphalt
Binders
Stiffness
effect
laboratory test
matrix
geotechnical property
stiffness
engineering

Keywords

  • Hot mix asphalt
  • Multi-scale laboratory tests
  • Reclaimed asphalt pavement
  • Rejuvenator

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

Cite this

The Effect of Rejuvenators on RAP Mixtures : A Study Based on Multiple Scale Laboratory Test Results. / Haghshenas, H. F.; Nabizadeh, H.; Kim, Y. R.

In: Geotechnical Special Publication, Vol. 2016-January, No. 270 GSP, 01.01.2016, p. 697-707.

Research output: Contribution to journalConference article

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