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Influence of truck load channelization on stripping in asphalt mixtures
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Highway and Railway Engineering (closed 20110301).
2007 (English)In: Construction and Building Materials, ISSN 0950-0618, Vol. 21, no 8, 1628-1635 p.Article in journal (Refereed) Published
Abstract [en]

The influence of load channelization on stripping was investigated using cores and block samples from a heavily loaded highway. The original 80/100 asphalt (virgin and RTFOT aged) was characterized using conventional methods. Stripping of mixtures was measured using ASTM D1664 and that of cores using visual diametral plane rating and loss in indirect tensile strength due to soaking. The pore saturation and air voids were found to be influenced by ground water level and wheel track location across traffic lanes. Stripping was rated higher in the wheel paths than between wheel paths, especially in shallow water table areas where it was observed to be 82% higher, implying possible dependency of stripping on channelization. To enhance resistance to moisture damage, it is recommended that Hot Mix Asphalt surfaces in areas with shallow water tables be designed to a more favorable refusal density.

Place, publisher, year, edition, pages
2007. Vol. 21, no 8, 1628-1635 p.
Keyword [en]
stripping, wheel paths, air voids, saturation, channelization
National Category
Building Technologies
URN: urn:nbn:se:kth:diva-36037DOI: 10.1016/j.conbuildmat.2006.06.027ISI: 000246260500003ScopusID: 2-s2.0-33847790652OAI: diva2:430183
QC 20110707Available from: 2011-07-07 Created: 2011-07-06 Last updated: 2011-07-07Bibliographically approved

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Bagampadde, Umaru
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Highway and Railway Engineering (closed 20110301)
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