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- W808538470 abstract "One of the most important concerns of transportation engineers today is the management of existing highways. A successful management program requires, among other things, a method of assessing remaining pavement life. This report presents a method for estimating the remaining life of flexible pavements. The method of predicting remaining pavement life uses the pavement surface deflection basin obtained with a Road Rater. The Road Rater deflection basin is described by means of the surface curvature index (SCI), base damage index (BDI), and base curvature index (BCI). To exclude the effect of environment conditions on pavement deflection, the deflection basins were corrected to the spring weather condition. An essential criterion adopted for the determination of pavement life is fatigue cracking. Field cracking data were related with the maximum tensile strain in the stabilized base course. Through the correlation between SCI and the maximum tensile strain, the relationship between SCI and cumulative traffic loading was established for each pavement section. Using this relationship, the remaining pavement life was evaluated. The results are presented graphically in terms of the structural number (SN) of the pavement section. The results obtained in this study are limited to pavements containing bituminous concrete base, because of insufficient field cracking data for other types of base course materials. It is recommended, therefore, that further research be performed on other types of base course materials, such as aggregate cement, aggregate-lime-pozzolan, and aggregate bituminous. (FHWA)" @default.
- W808538470 created "2016-06-24" @default.
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- W808538470 date "1980-02-01" @default.
- W808538470 modified "2023-09-27" @default.
- W808538470 title "USE OF DEFLECTION BASINS FOR THE MANAGEMENT OF FLEXIBLE PAVEMENTS" @default.
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