Evaluation of the Aggressiveness of Different Multi-Axle Loads Using Accelerated Pavement Tests
This paper presents results of a full scale accelerated test performed on the IFSTTAR pavement fatigue carrousel, to study the effect of various multiple axle combinations on bituminous pavements. The tested combinations correspond to the permissible maximum loads in France for the following axle systems: tridem axle (255 kN), tandem axle with dual wheels (210 kN), tandem axle with single wheels (170 kN) and single axle with dual wheels (130 kN). Recently, however, the French road carriers’ federation was authorized to change the vehicle load from 400 kN to 440 kN. The consequences of this increase are also discussed. The test was performed on two thick bituminous pavement sections consisting of a 16-cm granular subbase and a 26-cm thick bituminous layer. Both pavements were instrumented with strain gages, vertical displacement and temperature sensors. The objective of this research is to compare the strain signals and the maximum strain levels obtained for different axle combinations and temperature conditions and then, to compare the results with classical pavement design calculations to assess the relative aggressiveness of the different axle systems. The fatigue life of the two pavements, however, was not studied because, owing to their thickness, too many load cycles would have been required to complete a full fatigue test.
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Corporate Authors:
6000 Broken Sound Parkway, NW, Suite 300
Boca Raton, FL United States 33487 -
Authors:
- Kerzreho, J P
- Hornych, P
- Chabot, A
- Trichet, S
- Gouy, T
- Coirier, G
- Deloffre, Lydie
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Conference:
- 4th International Conference on Accelerated Pavement Testing
- Location: Davis CA, United States
- Date: 2012-9-19 to 2012-9-21
- Publication Date: 2012
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 505-517
- Monograph Title: Advances in Pavement Design through Full-scale Accelerated Pavement Testing
Subject/Index Terms
- TRT Terms: Accelerated tests; Asphalt pavements; Axle loads; Gross vehicle weight; Heavy vehicles; Load tests; Size and weight regulations
- Geographic Terms: France
- Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;
Filing Info
- Accession Number: 01468561
- Record Type: Publication
- Source Agency: UC Berkeley Transportation Library
- ISBN: 9780415621380
- Files: TLIB, TRIS
- Created Date: Jan 7 2013 2:07PM