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首页> 外文期刊>The international journal of pavement engineering >Improved method of considering air void and asphalt content changes on long-term performance of asphalt concrete pavements
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Improved method of considering air void and asphalt content changes on long-term performance of asphalt concrete pavements

机译：考虑空隙和沥青含量变化对沥青混凝土路面长期性能影响的改进方法

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摘要

Mixture properties (aggregate gradation and volumetric quantities), rate of loading and environmental conditions are the most important factors that affect the |E~*| values. The main objective of this study was to develop a rational approach to investigate and model the effect of air voids and asphalt content on the |E~*| master curves and consequently predict pavement performance. In this study, |E~*| tests were conducted on three asphalt concrete mixtures with the same aggregate gradation, but different binder grades. For each of these mixtures, the air void and asphalt contents were varied at three levels. It is found that the developed method provides a more accurate estimate of the effects of volumetric changes in hot mix asphalt. The application of the proposed approach would be most beneficial for quality control/quality assurance purposes, performance-related specifications and for estimating contractors' incentives and penalties, where |E~*| is utilised to predict the pavement performance.
机译：混合物的性质（总灰阶和体积量），加载速率和环境条件是影响| E〜* |的最重要因素。价值观。本研究的主要目的是开发一种合理的方法来研究和建模气孔和沥青含量对| E〜* |的影响。掌握弯道，从而预测路面性能。在此研究中，| E〜* |对三种骨料等级相同但粘结剂等级不同的沥青混凝土混合物进行了测试。对于这些混合物中的每一种，空气空隙和沥青含量在三个水平上变化。结果发现，开发的方法可以更准确地估算热拌沥青中体积变化的影响。所建议的方法的应用对于质量控制/质量保证目的，与性能相关的规格以及估计承包商的激励和惩罚最有益，其中| E〜* |。用于预测路面性能。

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  • 作者

    W.A. Zeiada; K.E. Kaloush; B.S. Underwood; M.E. Mamlouk;

  • 作者单位

    Department of Civil, Environmental, and Sustainable Engineering, Arizona State University, Tempe, AZ, USA,Department of Civil Engineering, Mansoura University, Mansoura, Egypt;

    Department of Civil, Environmental, and Sustainable Engineering, Arizona State University, Tempe, AZ, USA;

    Department of Civil, Environmental, and Sustainable Engineering, Arizona State University, Tempe, AZ, USA;

    Department of Civil, Environmental, and Sustainable Engineering, Arizona State University, Tempe, AZ, USA;

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  • 正文语种 eng
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  • 关键词

    dynamic modulus (E~*); air voids; asphalt content; pavement; performance;

    机译：动态模量（| E〜* |）;空气空隙;沥青含量;路面;性能;

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