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Phase VI (2015–2017) NCAT Test Track Findings
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2019-07-01
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[PDF-5.19 MB]
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Abstract:The National Center for Asphalt Technology (NCAT) Test Track is a pavement proving ground that was originally constructed from 1998-2000. This 1.7-mile oval track is a unique accelerated pavement testing facility that utilizes full-scale pavement construction of test sections and highway-speed, heavy trafficking to provide analysis of asphalt pavement responses and performance in just a few years. This provides the opportunity to realistically evaluate cutting-edge technologies and assist sponsors in implementation of materials and design methods that advance safe, durable, and sustainable asphalt pavements. Sixteen highway agencies and private sector partners funded experiments in the sixth cycle of the Test Track. This document includes findings from: (1) Cracking Group Experiment: Validation of Cracking Tests for Balanced Mix Design; (2) Alabama Department of Transportation (Alabama DOT) Evaluation of Open-Graded Friction Course Mixtures; (3) Collaborative Aggregates Delta S Rejuvenator Study; (4) Federal Highway Administration Development of Asphalt Bound Surfaces with Enhanced Friction Properties; (5) Florida DOT Cracking Study; (6) Georgia DOT Interlayer Study for Reflective Crack Prevention; (7) Kentucky Transportation Cabinet Longitudinal Joints and Mix Durability Experiment; (8) Mississippi DOT Evaluation of Thinlay Mix with Reclaimed Asphalt Pavement (RAP) and Local Aggregates; (9) Oklahoma DOT Open Graded Friction Course Study; (10) Tennessee DOT Thinlay Experiment; and (11) Virginia DOT Cold Central Plant Recycling and Stabilized Base Experiment.
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