Full scale accelerated testing of bituminous road pavement mixtures

被引:0
|
作者
Gilchrist, M.D. [1 ]
Hartman, A.M. [1 ]
Owende, P.M.O. [1 ]
Ward, S.M. [1 ]
机构
[1] Dept of Mechanical Engng, National University of Ireland, Dublin, Ireland
关键词
Asphalt - Cracks - Fatigue of materials - Materials testing - Strain - Strain gages;
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学科分类号
摘要
The in-service behaviour of a standard Irish Dense Base Coarse Macadam mixture (DBC) was evaluated by using the material to overlay a road section, which was based upon a weak pavement structure. The response of the layer under a fully laden dual axle truck was examined using a series of pressure cells and asphalt strain gauges that were embedded in the test section. The section was traversed repeatedly until a network of fatigue cracks was observed on the road surface. The transverse horizontal tensile strain was found to be the most critical parameter in initiating pavement damage.
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页码:443 / 452
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