Effects of reclaimed asphalt and warm mix asphalt on the availability of the road network

Conference paper (2019)

Authors

J. C. Nicholls Transport Research Laboratory
M. Wayman Transport Research Laboratory
Aikaterini Varveri Pavement Engineering - CEG
S. King Lagan Asphalt
S. Cassidy Lagan Asphalt
K. Mollenhauer University of Kassel
C. McNally University College Dublin
A. Tabakovic University College Dublin
Research Group
Pavement Engineering (CEG) (TU Delft)
Copyright: © 2019 J. C. Nicholls, M. Wayman, Aikaterini Varveri, S. King, S. Cassidy, K. Mollenhauer, C. McNally, A. Tabakovic
DOI: https://doi.org/10.1201/9781351063265-28
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Published Date

2019

Language

English

Reuse Rights

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Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Pavement Engineering

Abstract

This repot reviews the EARN project, which was undertaken under CEDR Call2012 in order to investigate the effects of using reclaimed asphalt (RA) and/or lower temperature asphalt on the road network. The work consisted of a review of existing data on service lifetime and availability of road materials and structures, a site trial to evaluate varying proportions of RA, experimental evaluation of moisture damage and ageing in asphalt mixtures and development of an impact assessment model. The site trial involved four different mixtures containing varying proportions of RA and warm mix additive and was monitored for international roughness index, mean profile depth, corrected SCRIM Coefficient, indirect stiffness modulus, water sensitivity and indirect tensile strength, the latter with and without artificial ageing. The monitoring was extended to 40 months with two extensions to the project, when monitoring of the binder mechanical and other properties were also made.

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