United States Department of Transportation
i
Ennis Paint, Inc. Tyregrip high friction surface system.
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2014-03-01
[PDF-1.16 MB]
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Abstract:Unpredictable
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)
has
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
2009,
the damaged sections were repaired by Ennis Paint, Inc and Total
Highway Maintenance (THM). In July
2010,
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
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site meeting with VTrans
Pavement Management, Materials and Research, and District 1 personnel it was determined
that,
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
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The new trial location would preferably be on new pavement, where underlying
crack
ing and/or distresses are not of concern to the performance of the treatment
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