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首页> 美国政府科技报告 >Long-Term Pavement Performance (LTPP) Data Analysis Support: National Pooled Fund Study TPF-5(013). Effects of Multiple Freeze Cycles and Deep Frost Penetration on Pavement Performance and Cost Final rept. (March 2003-May 2006)
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Long-Term Pavement Performance (LTPP) Data Analysis Support: National Pooled Fund Study TPF-5(013). Effects of Multiple Freeze Cycles and Deep Frost Penetration on Pavement Performance and Cost Final rept. (March 2003-May 2006)

机译：长期路面性能（LTpp）数据分析支持：国家集合基金研究TpF-5（013）。多冻结循环和深层冻侵对路面性能和成本的影响。 （2003年3月至2006年5月）

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The objectives of this study are to: (1) quantify the effects of frost penetration on pavement performance in climates with deep sustained frost as compared to environments with multiple freeze-thaw cycles, (2) investigate the effect that local adaptations have on mitigating frost penetration damage, and (3) estimate the associated cost of constructing and maintaining pavements in freezing climates. The approach consisted of modeling various pavement performance measures using both climatic and nonclimatic input variables and performance data collected as part of the Long-Term Pavement Performance program. Five climatic scenarios are defined in terms of climatic input variables for the models. Predicted performance measures are presented for each of the climatic scenarios and compared at a 95 percent confidence interval to determine statistically significant performance differences. Participating pooled fund States (PFS) were queried as to standard specifications, standard designs, average life expectancies, and construction costs specific to each State Highway Agency (SHA).

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