Experimental use of rubber-tire rollers as a means of improving density in asphalt overlays.
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Experimental use of rubber-tire rollers as a means of improving density in asphalt overlays.

Filetype[PDF-951.15 KB]


  • English
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    • Creators:
      Hughes, C. S
    • Corporate Creators:
      Virginia Transportation Research Council (VTRC)
    • Subject/TRT Terms:
    • Publication/ Report Number:
      VTRC 91-R29
    • Resource Type:
      Tech Report
    • Geographical Coverage:
      Virginia
    • Edition:
      Final report.Aug. 1990Mar. 1991.
    • Corporate Publisher:
      Virginia Transportation Research Council (VTRC)
    • Abstract:
      This study reports the results of comparative tests on sections of asphalt pavement rolled with conventional steel-wheel rollers and those rolled with a rubber tire roller added between the steel-wheel breakdown and steel wheel finish rollers. Nuclear density and air voids were used as measures of potential differences between sections. Of the 15 projects tested, which included 90 comparisons of averages and standard deviation, the sections rolled with the rubber-tire roller added were statistically significantly (a = .05) "better" in only 11 percent. Sections rolled with the conventional steel-wheel rollers were statistically significantly (a = .05) "better" in 13 percent. In the author's opinion, this does not indicate that the addition of the rubber-tire roller was actually detrimental. There were most likely other variables in the pavement, rolling, and/or testing that created the differences. However, it is obvious that this testing showed no consistent measurable benefit as a result of the addition of a rubber-tire roller.
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