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Validation and refinement of the transportek wheel tracking test in the south african guidelines for hot mix asphalt



Title: Validation and refinement of the transportek wheel tracking test in the south african guidelines for hot mix asphalt
Author(s): F. Long, B. Verhaeghe
Paper category : conference
Book title: Sixth International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials
Editor(s): M. N. Partl
Print-ISBN: 2-912143-35-7
e-ISBN: 2912143772
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 557 - 564
Total Pages: 8
Nb references: 2
Language: English


Abstract: This paper describes the use of the Transportek Wheel Tracking Test (TWTT) in the new South African Hot Mix Asphalt guidelines to evaluate the rutting resistance of mixes. Results from a validation study of the SA HMA guidelines used to evaluate the TWTT are presented, as is justification for modifying the criterion used to assess mixes.The test was also validated with field data from a test section that was showing signifi-cant early rutting. Slabs from rutted and non-rutted sections were tested in the TWTT and the results compared favourably with the observed field performance.The paper confirms that a wheel tracking test, in this case the TWTT, is currently the best, relatively affordable test to rank mixes in South Africa.


Online publication: 2003-03-02
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143772.070