Pavement Preservation Journal - Spring 2013 - (Page 23)

NCAT UPDATE: Axle Loads, Mileage Begin to Accumulate on NCAT Tests T housands of equivalent single-axle loads and miles of truck trips have begun to accumulate on the new pavement preservation tests at the National Center for Asphalt Technology (NCAT) at Auburn University. In the fall of 2012, for the first time, preservation techniques began to be studied at the Pavement Test Track at the National Center for Asphalt Technology (NCAT) near Auburn, Ala. The new NCAT Pavement Preservation Effectiveness Study is bringing the prestige of NCAT’s research facility to pavement preservation practice. In addition to use of the NCAT Pavement Test Track to study pavement preservation treatments, preservation treatments also were placed off-track on a half-mile local county road that supports traffic to an aggregate quarry and an asphalt mixing plant with a high percentage of truck traffic. There, as part of the NCAT Pavement Preservation Effectiveness Study, Lee Road 159 is serving as the host roadway for the off-track component of the 2012 multi-sponsor Preservation Group (PG) experiment. “There are three different classes of testing we do on Lee Road 159, as traffic develops,” said NCAT assistant director Buzz Powell, P.E., Ph.D., in January. “We do weekly testing with our ARAN van, which is an inertial profiler; we do weekly crack map videos where we also do visual inspections with notes and pictures of anything noteworthy; and we do subgrade characterization testing to document differences between sections that can affect surface performance.” Subgrade moisture testing is run using permanently installed probes and falling weight deflectometer testing is completed monthly in multiple locations of every section on Lee Road 159. “There is an extensive amount of work done for weekly and monthly testing,” Powell said. NCAT is collecting two different levels of distress data on Lee Road 159, Powell said. “We crawl around our test sections on the Pavement Test Track, looking for things you can’t see with network level video inspection systems,” he said. “We’re doing that same thing on Lee Road 159, but that’s just data for our own internal purposes, so we know where cracks have initiated. Life extending benefit curves that are the implementable product of the experiment will only be based on video inspections because that’s how they will be calibrated to local materials, climates, contractors, etc. by sponsoring state DOTs.” For more information, please contact FP2 executive director Jim Moulthrop at (512) 970-8865, jimmoulthrop@gmail. com. And please accept our sincere “thanks” for considering participation in this important undertaking at the NCAT Pavement Test Track Jim Moulthrop, executive director, FP2 Inc.; Tracy Taylor, Williams & Jensen, LLC; Scott Bergkamp, Bergkamp, Inc.; and Will Wilson, executive director, TRIP, The Road Information Program Andrew Cooper, James Cox & Sons, Colfax, Calif.; Jean-Paul Fort, Colas Solutions, Inc., Cincinnati; Mike Buckingham, president, FP2 Inc.; and Marianne Rolland, James Cox & Sons FP2 INC. SUITE OFFERS ‘HOME AWAY FROM HOME’ At the 92nd annual meeting of the Transportation Research Board, held Jan. 13-17 in Washington, D.C., FP2’s TRB hospitality suite offered stakeholders in the pavement preservation community a “home away from home” for two nights, Jan. 14-15. Michelle Mason, Kraton Polymers LLC, Houston, and Larry Galehouse, director, National Center for Pavement Preservation Spring 2013 pavement preservation journal 23

Table of Contents for the Digital Edition of Pavement Preservation Journal - Spring 2013

President’s Message
MAP-21: Pathway to Preservation at the Federal Funding Level
Cold-in-Place Recycling, Fiber Membrane and Seal Preserves Desert Highway
NCPP: New Online Tool Helps Measure Road Network Health
NCAT UPDATE: Axle Loads, Mileage Begin to Accumulate on NCAT Tests
NEPPP: Ribbon Cuttings Shine Spotlight on New Hampshire Pavement Preservation
TPPC: Micro Surfacing Training Offered at Texas Center
MnROAD Studies Pavement Preservation
Enlist News Media in Battle for Pavement Preservation
HIR Solves Cost Challenge to Runway Reconstruction
Shale Gas Boom Drives Town’s Bridge Renovation
Optimum Time for Slurry Seal Depends on Original Build Dat
Index of Advertisers

Pavement Preservation Journal - Spring 2013