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Title: Modified asphalt mixtures for heavy duty pavement wearing layers
Authors: Vaitkus, Audrius
Vorobjovas, Viktoras
Kleizienė, Rita
Šernas, Ovidijus
Gražulytė, Judita
Keywords: Heavy duty pavement
Rheological characteristics
Permanent deformation
Fatigue
Asphalt wearing layer
Asphalt mixture modification
Issue Date: 2017
Publisher: Elsevier
Citation: Vaitkus, A., Vorobjovas, V., Kleizienė, R., Šernas, O.,Gražulytė, J., 2017. Modified asphalt mixtures for heavy duty pavement wearing layers. Construction and Building Materials. 101, 503-511. https://doi.org/10.1016/j.conbuildmat.2016.11.055
Series/Report no.: 131;
Abstract: Asphalt pavements perform in a wide range of temperatures, especially in Eastern European countries, where the daily mean temperature of asphalt layers varies from −18 °C during winter to 47 °C during summer or even higher under more severe climatic conditions. Low temperatures preclude the use of high-stiffness binders because of their high susceptibility to thermal cracking. High temperatures during summer and a heavy static load contribution cause rutting, slippage, and high plastic deformation of heavy duty asphalt pavements. Many research programs on asphalt wearing layers affected by long-lasting high stress have been initiated to address this problem. Our theoretical analysis led to a plan and subsequent detailed laboratory research of modified AC 11 VS and SMA 11 S asphalt mixtures. We analyzed 11 different bitumens and the modification of the asphalt mixture aggregate distribution. The experimental results show extremely good rutting performance of the modified asphalt mixtures.
URI: http://dspace.vgtu.lt/handle/1/4215
ISSN: 0950-0618
Appears in Collections:Moksliniai straipsniai / Research articles

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