Type

Conference Proceedings

Authors

Ciaran McNally
M. D. Gilchrist
Amanda Gibney
Amir Tabakovic

Subjects

Engineering

Topics
recycled products circular wheel track cwt asphalt fatigue binders materials fatigue binder course bc recycled asphalt pavement rap dynamic strain pavements asphalt cracking fatigue

Fatigue resistance of bituminous layers incorporating reclaimed asphalt pavement (2006)

Abstract This paper presents the results of an investigation into the fatigue performance of a 20mm Binder Course Asphalt Pavement Mix incorporating Recycled Asphalt Pavement(RAP). For the study, a series of binder course mixes were designed containingvarying percentages of RAP. A mix made only from virgin material, was selected as the control mix for the investigation. A Circular Wheel Tracker (CWT) was developed in order to simulate the dynamic loading conditions of a rolling wheel and to study the initiation and growth of fatigue cracks in an asphalt pavement mix. The CWT was commissioned within a temperature-controlled room with a customised data acquisition system. The test specimens were subjected to dynamic loading in the CWT and the dynamic strain on the underside of the slab was monitored throughout the test. A digital image processing technique was also used to measure the crack area and crack length at the underside of the test specimen. Parallel to this a separate testing programme was undertaken, whereby the fatigue resistance of bituminous mixtures incorporating same RAP contents was assessed using the indirect tensile fatigue test as described in BS DD ABF:1997. The results from these parallel strands are compared, and the performance of the various mixes incorporating RAP isassessed.
Collections Ireland -> University College Dublin -> Critical Infrastructure Group Research Collection
Ireland -> University College Dublin -> Mechanical & Materials Engineering Research Collection
Ireland -> University College Dublin -> Interdisciplinary Centres & Research Groups
Ireland -> University College Dublin -> Civil Engineering Research Collection
Ireland -> University College Dublin -> College of Engineering & Architecture
Ireland -> University College Dublin -> Critical Infrastructure Group
Ireland -> University College Dublin -> School of Civil Engineering
Ireland -> University College Dublin -> School of Mechanical and Materials Engineering

Full list of authors on original publication

Ciaran McNally, M. D. Gilchrist, Amanda Gibney, Amir Tabakovic

Experts in our system

1
M. D. Gilchrist
University College Dublin
Total Publications: 172
 
2
Amir Tabakovic
Dublin Institute of Technology
Total Publications: 7