Monitoring and modeling of pavement response and performance task B : New York, executive summary report.
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2012-01-01
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Edition:Executive summary report.
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Abstract:Problem: Perpetual asphalt concrete (AC) and long-lasting
Portland cement concrete (PCC) pavements are relatively
new to the pavement community. These newer pavements
require the use of innovative Mechanistic-Empirical (ME)
design procedures, advanced climatic models, updated
specifications, test methods providing detailed material
properties, and construction techniques not been entirely
adopted into standard practice. Standard practice for
rehabilitating distressed highway pavements generally
involves the application of AC overlays. When AC overlays
are placed on distressed PCC pavements, slab movements
cause stress concentrations to develop at joints and cracks,
which often results in premature cracks reflecting up
through to the surface at these locations. By breaking PCC
slabs into smaller pieces prior to overlay, stresses are
reduced by distributing the load over a wider area.
Instrumentation installed in these pavement sections will
provide data regarding measured responses under known
environmental and loading conditions.
Objectives:
(1) Monitor new perpetual AC and long-lasting PCC
pavements constructed on US-30 in Ohio, rehabilitated
PCC pavements on I-86 in New York, and other
existing instrumented pavements in both states,
(2) Verify ME design procedures for all pavements in the
study by comparing theoretical calculations with
measured responses and performance,
(3) Calibrate ME procedures presented in the NCHRP 1-
37A AASHTO Pavement Guide for Ohio and New
York using data collected in this and other previous
studies,
(4) Conduct controlled testing of perpetual pavement
systems to determine their relative performance and to
recommend the most promising layer configurations,
and
(5) Document all research findings in a final report.
Within each of these primary objectives were various
secondary objectives related to the primary goals.
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