Long-Term Pavement Performance Bind Online User Guide
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2017-10-01
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OCLC Number:1029606929
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Abstract:This document presents the user guide for the Long-Term Pavement Performance (LTPP) Web-based tool used to select asphalt binders. LTPPBind Online was developed to help State transportation departments select the most suitable performance-grade binder for a particular site based on the American Association of State and Highway Transportation Officials (AASHTO) M320-10 and AASHTO M332-14 standards.(1–3) LTPPBind Online provides the option to use National Aeronautics and Space Administration Modern-Era Retrospective Analysis for Research and Applications climatic data collected globally since 1979, LTPP climatic data (virtual weather station or automatic weather station), or manual data.
High-temperature (HT) Performance Grade is selected based on a rutting damage model. HT equation is function of target rut depth, yearly degree-days and latitude of site(6). Low-temperature (LT) PG binder is selected using the algorithm developed from LTPP climatic data. LT algorithm relates surface low pavement temperature to air temperature, latitude, and depth(7).
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