Journal Published Online: 01 March 1999
Volume 27, Issue 2

Experimental System for Simulating Crack Propagation in Asphalt Pavements and Effectiveness of Geosynthetics in Crack Retardation



This paper presents the pneumatic moving wheel experimental system and its usefulness in simulating the role of geosynthetics (geogrids) in limiting crack propagation. The simultaneous development of rutting through the experiment was studied as well. The performance of the developed loading system showed that: (1) the moving wheel loading device provides a compact, convenient, simple, and rational experimental tool for investigating the effect of pneumatic wheel loading on the mechanical dynamic behavior of asphaltic layers; (2) two of the failure modes of asphaltic pavements, fatigue cracking and permanent deformation, could be assessed and measured simultaneously; and (3) the relative effect of geosynthetics reinforcement on the retardation of the development of the above distresses during service life was successfully measured to verify quantitatively the contribution of interlayer reinforcement toward the reduction of permanent deformation (rutting) and the increase of asphaltic surface layer life by retarding crack propagation.

Author Information

Goulias, DG
Polytechnic University, Brooklyn, NY
Ishai, I
Technion-Israel Institute of Technology, Haifa, Israel
Pages: 8
Price: $25.00
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Stock #: JTE12048J
ISSN: 0090-3973
DOI: 10.1520/JTE12048J