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Effect of asphalt film thickness on low temperature cracking and rutting



Title: Effect of asphalt film thickness on low temperature cracking and rutting
Author(s): Y. Tasdemir, T. S. Vinson, E. Agar
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: 285 - 291
Total Pages: 7
Nb references: 14
Language: English


Abstract: The effect of asphalt film thickness on low temperature cracking and rutting was investigated in a laboratory research program which considered: one aggregate, one asphalt cement type, one modifier, one stabilizer, two film thickness and two 85 0C oven aging levels. Thermal stress restrained specimen tests (TSRST) and the French rutting tester were used to evaluate the low temperature cracking and rutting resistance of the asphalt concrete specimens. Minimum and maximum film thicknesses were chosen as 9 and 13 mm, respectively, based on the Iowa Department of Transportation (IDOT) specification. At 13 mm asphalt film thickness excessive rutting occurred on unmodified mixtures and fracture temperature increased slightly with aging. The test results indicate asphalt film thickness is an important parameter to consider when designing mixes to resist low temperature cracking and rutting. Rutting is related with asphalt film thickness and minimized with a minimum asphalt film thickness. Asphalt film thickness does not have a significant effect on low temperature cracking when there is no aging.


Online publication: 2003-03-02
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143772.035


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