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Probability Density Functions Associated with the Resilient Modulus of Virgin Aggregate Bases

机译：与原始骨料基地的弹性模量相关的概率密度函数

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The accuracy of the reliability-based designs for pavements mostly depends on the probability density functions (PDF) associated with the resilient modulus of the pavement layer. The present study attempts to find out the appropriate PDF corresponding to the base resilient modulus (Mr) of different virgin aggregates that are used in the flexible pavements. Extensive literature study has been conducted and about 120 data points were collected from various global studies performed on virgin aggregate base materials for their use in flexible pavements. Histogram and statistical analyses are performed on the dataset. An accurate PDF is then proposed from the available distributions by using percentile (P-P) and quantile (Q-Q) fit assessment plots. The proposed mean, standard deviation and coefficient of variation associated with the best PDF are further useful for developing the reliability based design optimization methods for pavements.
机译：基于可靠性的路面设计的准确性主要取决于与路面层的弹性模量相关的概率密度函数（PDF）。本研究试图找到与柔性路面中使用的不同原始骨料的基础弹性模量（Mr）相对应的合适的PDF。已经进行了广泛的文献研究，并从对天然骨料基础材料进行的各种全球性研究中收集了约120个数据点，以用于柔性人行道。对数据集进行直方图和统计分析。然后，通过使用百分位数（P-P）和分位数（Q-Q）拟合评估图，从可用分布中提出准确的PDF。与最佳PDF相关的建议平均值，标准偏差和变异系数对于开发基于路面的可靠性设计优化方法更有用。

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