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Establishment of Rutting Model of Wheel-Tracking Test for Real-Time Prediction of Rut Depth of Asphalt Layers
Advances in Civil Engineering ( IF 1.8 ) Pub Date : 2021-06-21 , DOI: 10.1155/2021/5549891
Yulong Zhao 1, 2 , Ying Gao 2 , Ke Zhang 3 , Yao Zhang 4 , Mingce Yu 5
Affiliation  

The construction process control of asphalt layers directly affects the road service life and quality. The objective of this study was to establish a rutting model of the wheel-tracking test used for the real-time prediction of the rut depth of asphalt layers in the construction process. The gradation of asphalt mixture, asphalt content, and molding temperature were considered in the development of the new rutting model of the wheel-tracking test. The effects of these three factors on the high-temperature performance of asphalt mixture were analyzed. The order of importance of the factors affecting the high-temperature performance of asphalt mixture is the gradation of asphalt mixture, asphalt-aggregate ratio, and molding temperature. Overall, the predicted values of the rut depth of the wheel-tracking test are very close to the measured values. Furthermore, the difference between the rut depths of asphalt layers of the test group and the control group is small. These comparison results indicate that the new rutting model of the wheel-tracking test has high accuracy and good applicability for the test road.

中文翻译:

实时预测沥青层车辙深度的车轮跟踪试验车辙模型的建立

沥青层的施工过程控制直接影响道路使用寿命和质量。本研究的目的是建立车轮跟踪试验车辙模型,用于实时预测施工过程中沥青层的车辙深度。沥青混合料的级配、沥青含量和成型温度在车轮履带试验的新车辙模型的开发中都被考虑到了。 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 分析了这三个因素对沥青混合料高温性能的影响。影响沥青混合料高温性能因素的重要程度依次为沥青混合料级配、沥青骨料比和成型温度。总体而言,车轮跟踪试验车辙深度的预测值与实测值非常接近。此外,试验组与对照组的沥青层车辙深度差异较小。这些对比结果表明,新的车轮跟踪试验车辙模型具有较高的精度和良好的试验道路适用性。
更新日期:2021-06-21
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