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首页> 外文期刊>Indian journal of engineering and materials sciences >Evaluation of the dynamic modulus of asphalt mixture incorporating reclaimed asphalt pavement
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Evaluation of the dynamic modulus of asphalt mixture incorporating reclaimed asphalt pavement

机译：掺再生沥青路面的沥青混合料的动态模量评估

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摘要

This paper presents the effects of temperature and loading frequency on the dynamic modulus and phase angle of asphalt mixtures incorporating reclaimed asphalt pavement (RAP) using the asphalt mixture performance tester. Milling waste from Damansara-Puchong Expressway is incorporated in asphalt mixtures in proportions of 0%, 10%, 20%, 30% and 40%. The asphalt mixtures are tested for dynamic modulus at three temperatures (20, 40, 50°C) and six loading frequencies (0.1, 0.5, 1, 5, 10 and 25 Hz). At constant temperature, the dynamic modulus increased as the loading frequency and RAP content increased. For a given frequency, the dynamic modulus decreased while the phase angle increased as the temperature increased. From statistical analysis, t est temperature and frequency have significant effects with high effect size on the measured dynamic modulus and phase angle. The interaction effect of frequency and RAP give the highest effect size among the interaction effects in the dynamic modulus test. The results also indicated that the highest performance in terms of rutting and fatigue factors can be attained when the frequency of cumulative traffic loading was from 15 to 20 Hz.
机译：本文利用沥青混合料性能测试仪，介绍了温度和加载频率对掺入再生沥青路面（RAP）的沥青混合料的动态模量和相角的影响。来自Damansara-Puchong高速公路的研磨废料以0％，10％，20％，30％和40％的比例掺入沥青混合料中。在三种温度（20、40、50°C）和六种加载频率（0.1、0.5、1、5、10和25 Hz）下测试沥青混合物的动态模量。在恒定温度下，动态模量随加载频率和RAP含量的增加而增加。对于给定的频率，动态模量随温度升高而减小，而相角随温度升高而增大。从统计分析来看，试验温度和频率对测得的动态模量和相角具有显着影响，且影响大小较大。在动态模量测试中，频率和RAP的交互作用在交互作用中给出了最大的影响大小。结果还表明，当车流量和负载的累积频率为15到20 Hz时，可以获得最高的车辙和疲劳因子性能。

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