Using the results of the frost penetration analysis, average and maximum frost depths were determined, along with the first and the last cold month with freeze conditions for each LTPP site with in-situ measurement data. Observations discovered during the project are described in this section. Locations of LTPP SMP sites analyzed in this study. Detailed frost penetration results were reported in two LTPP computed parameters tables discussed later in this chapter.įigure 20. There were between 2 and 11 years of data analyzed for the different LTPP sites. Data from 21,953 dates were analyzed, and frost penetration depths were estimated. The schematic location of LTPP sites used in the frost penetration analysis study is shown in figure 21. The analysis results, as well as the LTPP computed parameters developed under this project, were reviewed thoroughly.įrost penetration analysis was conducted for 41 LTPP sites from the SMP I and II experiments. In addition to the reinterpretation of the previously processed data, all SMP II sections with ER data that had not been previously analyzed were analyzed using E-FROST, and new frost depths and layer estimates were prepared for the LTPP database upload. Using the E-FROST research analysis tool, all previously processed sections with ER data were reprocessed using the enhanced analysis methodology presented in chapter 4, and new frost depths and layer estimates were determined. FROST PENETRATION ANALYSIS RESULTS DATA ANALYSIS SUMMARY

Long-Term Pavement Performance Computed Parameter: Frost Penetration CHAPTER 7.

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