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Ennis Paint, Inc. Tyregrip high friction surface system.
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  • Abstract:

    climatic conditions paired with the varying topography in Vermont have often resulted

    in dangerous roadway conditions


    Statistics show that many fatalities occur in rural environments like

    Vermont. Federal Highway Administration (FHWA)


    developed many

    strategies to address this issue.

    One experimental treatment that has been used is a high friction overlay known as Tyregrip. Key personnel

    at VTrans chose to evaluate the treatment at a high crash location along VT Route 9 in the town of

    Woodford, Verm

    ont in 2009.

    The treatment was placed on the westbound lane and shoulder at approximately MM 3.0, on

    October 8, 2009. Shortly after the installation Research personnel observed failures in the

    treatment, which

    required attention. In November


    the damaged sections were repaired by Ennis Paint, Inc and Total

    Highway Maintenance (THM). In July


    significant cracking and delamination failures were observed. It

    was determined a repair was needed however due to limited promoting weather condit

    ions and inflexible

    schedules the repair was planned for the 2011 construction season. After an on


    site meeting with VTrans

    Pavement Management, Materials and Research, and District 1 personnel it was determined


    the ideal

    repair would be to mill up

    and repave the section with asphalt pavement.

    Based on the limited evaluation period it is recommended that the treatment be installed at a

    different location in Vermont


    The new trial location would preferably be on new pavement, where underlying


    ing and/or distresses are not of concern to the performance of the treatment

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