Influence of Static and Vibratory Compaction on the Flow Behaviour of Asphalt Surface Courses

Author(s): Ehsan Ghafoori Roozbahany, Alvaro Guarin and Manfred N. Partl
Paper category: Proceedings
Book title: Proceedings of the 71st RILEM Annual Week & ICACMS 2017,Chennai,India, 3rd -8th September 2017
Editor(s): Manu Santhanam
Ravindra Gettu
Radhakrishna G. Pillai
Sunitha K. Nayar
ISBN: 978-2-35158-196-4
ISBN: 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9:
Publisher: Published by RILEM Publications S.A.R.L.
Publication year: 2017
Pages: 536-545
Total Pages: 10
Language : English

Abstract: Static and vibratory compaction modes have been used for constructing flexible pavements
for a long time. However, it is still not sufficiently understood how these two modes
influence the movement of aggregates in asphalt mixture during compaction. This study is an
attempt towards understanding and testing the flow behaviour of different asphalt wearing
courses by taking a close look at their internal movements of aggregates during static and
vibratory compaction. Hence, a recently developed test was utilized for simulating the flow
of two structurally different asphalt mixtures at laboratory scale. Each specimen was tested
inside an X-ray computed tomography system for acquiring images from the movements of
the aggregates within the mixtures. The obtained results from the test and X-ray image
analysis successfully demonstrated the influence of different modes of compaction on the
chosen mixtures. Therefore, it can be concluded that the chosen approach can be considered
as an applicable way to study a wider range of mixtures and vibration variations. In this way,
this study can be taken as a basis for improving road compaction as a key factor for
constructing better performing roads and more efficient use of material resources.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00