Predicting the development of asphalt surfacing properties in Ireland

Shaun Friel, David Woodward

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)
53 Downloads (Pure)

Abstract

This paper gives an over-view of research into predicting the development of asphalt surfacing properties for mixes used in Ireland. Accelerated trafficking was simulated using the Road Test Machine. The asphalt materials included asphalt concrete, hot rolled asphalt, stone mastic asphalt; and proprietary high friction surfacing and thin surfacing systems. The properties assessed include wet skid resistance, aggregate exposure, 2D and 3D areal texture. The findings highlight the role of aggregate and bitumen type; nominal particle size and bitumen properties. The results show that properties such as skid resistance can be optimised for a given aggregate depending on how it’s used. It suggests that lower skid resistant aggregate can be used as a smaller nominal size and still provide adequate levels of in-service performance. The data suggests that current specifications could be modified to allow better optimisation / more sustainable use of local aggregates than previously allowed.
Original languageEnglish
Title of host publicationUnknown Host Publication
Place of PublicationProceedings of the 2013 Airfield and Highway Pavement Conference
PublisherAmerican Society of Civil Engineers
Pages829-840
Number of pages12
ISBN (Print)978-0-7844-1300-5
Publication statusPublished - 2013
EventAirfield and Highway Pavement 2013 - Los Angeles
Duration: 1 Jan 2013 → …

Conference

ConferenceAirfield and Highway Pavement 2013
Period1/01/13 → …

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