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dc.contributorVirginia Transportation Research Councilen_US
dc.contributorVirginia Techen_US
dc.contributor.authorFlintsch, Gerardo W.en_US
dc.date.accessioned2014-03-19T18:30:09Z
dc.date.available2014-03-19T18:30:09Z
dc.date.issued2004-02-01
dc.identifier.citationGerardo W. Flintsch. "Assessment of the Performance of Several Roadway Mixes Under Rain, Snow, and Winter Maintenance Activities," Virginia Transportation Research Council 530 Edgemont Road Charlottesville, VA 22903, Report No. VTRC 04-CR18, Feb. 2004.
dc.identifier.govdocVTRC 04-CR18
dc.identifier.urihttp://hdl.handle.net/10919/46649
dc.description.abstractThe purpose of this study was to assess the relative functional performance, including skid resistance and splash and spray, of five hot-mix-asphalt (HMA) surfaces and a tinned portland cement concrete highway surface during controlled wet and wintry weather events. The study compared the way that these surfaces respond to various deicing and anti-icing snow removal and ice control techniques under artificial wintry conditions. In addition, the splash and spray characteristics of the surfaces during and immediately after rain were also evaluated. The study focused on the surfaces placed within the all-weather testing area at the Virginia Smart Road. The winter maintenance techniques tested include the application of sodium chloride (salt) in granular, pre-wetted, and liquid forms. The snow removal and ice control measures that were used followed the recommendation of the FHWA Project T & E 28 and variations thereof. The experiments to compare the splash and spray characteristics of the mixes were conducted using artificial rain. The study defined and tested a methodology for testing winter maintenance operations under controlled, artificial wintry events. The winter maintenance test results were inconclusive, as the various maintenance treatments were unable to significantly improve the functional condition of the road. Under the temperature and precipitation conditions encountered, there were no significant differences in the performance of the different surface mixes tested. However, conditions encountered did not correspond to conditions normally encountered with natural snow. The researcher concluded that at temperatures at and just below freezing, artificial snow might not be appropriate for evaluating the effectiveness of winter maintenance chemicals. Studies that depend upon imitating the on-road attributes of natural snow, such as testing effectiveness of winter maintenance chemicals, should adhere to the ideal temperature-humidity guidelines for the snowmaking equipment. The open-graded friction course appears to have enhanced spray and splash performance when compared with the dense HMA surface mixes; however, a more objective measure of splash and spray characteristics of the surfaces is needed to quantify the beneficial effect of this type of mixes. No visual difference in performance was observed among the other mixes.
dc.description.sponsorshipVirginia Department of Transportation
dc.format.extent29 pages
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_US
dc.publisherVirginia Center for Transportation Innovation and Research
dc.titleAssessment of the Performance of Several Roadway Mixes under Rain, Snow, and Winter Maintenance Activitiesen_US
dc.typeTechnical reporten_US
dc.identifier.urlhttp://www.virginiadot.org/vtrc/main/online_reports/pdf/04-cr18.pdf
dc.date.accessed2013-11-21
dc.type.dcmitypeTexten_US


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