As a means of gaining a better understanding of the impact of compaction energy levels on the thickness of flexible pavements, this study investigated samples that were 50% thicker than the standard Marshall specimen sizes. The gradations for those longer (thicker) specimens were based on the binder course gradations as specified by the Republic of Turkey’s General Directorate of Highways. To obtain reliable assessments of the thicker specimens, we compared our test results with those of a control group consisting of standard Marshall Briquettes prepared using the same materials. All specimens were compacted with 10 different compaction energy levels that were increased by fives, starting from 50 blows and ending at 95 blows. After determining their lengths, volumes and specific gravities, a special marble cutter was used to split the thick specimens into two equal parts. Those two identical specimens were identified as the "thin specimens". Subsequently, the Marshall stability test and the indirect tensile test were applied both to the standard Marshall specimen group and the thick and the thin specimen groups. The test results showed that asphalt specimens of 47 and 95 mm in height were optimally compacted after being subjected to 65 and 70 blows.

中文翻译：

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压实能级对柔性路面厚度影响的试验研究

为了更好地了解压实能量水平对柔性路面厚度的影响，本研究调查了比标准马歇尔试样尺寸厚 50% 的样品。那些较长（较厚）试样的渐变基于土耳其共和国公路总局规定的粘合剂层渐变。为了获得对较厚样品的可靠评估，我们将我们的测试结果与使用相同材料制备的标准马歇尔煤球组成的对照组进行了比较。所有试样都用 10 种不同的压实能级进行压实，从 50 次冲击开始到 95 次冲击，这些能量水平增加了 5 次。在确定它们的长度、体积和比重后，使用特殊的大理石切割机将厚样品分成两等份。这两个相同的标本被确定为“薄标本”。随后，对标准马歇尔试样组和厚、薄试样组进行了马歇尔稳定性试验和间接拉伸试验。试验结果表明，47 和 95 毫米高的沥青试件在经受 65 和 70 次打击后得到最佳压实。