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Experimental investigation of the fatigue behaviour of asphalt concrete mixtures containing waste iron powder

机译：含废铁粉的沥青混凝土混合料疲劳性能的试验研究

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摘要

The use of additives and admixtures in the construction of asphalt concrete pavements to strengthen them against dynamic loads has increased considerably in recent years. Recent research has shown that employing desirable waste materials in hot mix asphalts (HMAs) improves their dynamic properties noticeably. The study of some special cases, such as the addition of blast furnace slag and metallic materials of waste electronic instruments to HMA, has led to a considerable increase in the ability of HMAs to tolerate fatigue phenomena and repeated loading. Based on experimental studies, a model is proposed to describe the fatigue behaviour of asphalt mixtures containing waste iron powder. The results of this research show an important increase in the strength of asphalt mixtures containing waste iron powder against fatigue phenomena in comparison to conventional HMAs.
机译：近年来，在沥青混凝土路面施工中使用添加剂和掺合料以增强其抵抗动载荷的作用已大大增加。最近的研究表明，在热混合沥青（HMA）中使用所需的废料可显着改善其动态性能。对某些特殊情况的研究，例如向HMA中添加高炉矿渣和废旧电子仪器的金属材料，已导致HMA耐受疲劳现象和重复载荷的能力大大提高。在实验研究的基础上，提出了描述含废铁粉的沥青混合料疲劳性能的模型。这项研究的结果表明，与传统的HMA相比，含废铁粉的沥青混合料抗疲劳现象的强度有了显着提高。

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