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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Main Document Checksum:urn:sha-512:084ce4f7f5d4c2a368070e7ccf263f7e3e64d82b53bf8cdfc3fe02891d1fb012b846b99d523ed456897bc4b0c05237137c3ca065af25c07d769ce6e61000a1ea