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首页> 外文会议>International Conference on Materials Engineering and Science >Hot Mix Aspalt Characteristics Improved With Nano Materiales
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Hot Mix Aspalt Characteristics Improved With Nano Materiales

机译：热混合沥青特性用纳米材料改善

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Common failures in road asphalt pavement includes fatigue, rutting and cracking. It is also common that these failures are usually resulted from either temperature sensitivity or moisture susceptibility of asphalt mix or one of its component - asphalt or aggregate. Many studies have recently dealt with these problems in asphalt roads and several solutions were proposed. Using nano-materials is one of these advanced solutions. Investigating the feasibility of using nano-materials as a mechanism for improving asphalt mix characteristics is the aim of this project. Specifically, the potential effects of nano-carbon in improving bituminous mixtures used in road paving have been experimentally studied. Several tests on bitumen and bituminous mixture with and without nano-carbon have been conducted. Penetration, softening point and ductility were conducted on the base and modified bitumen, while Marshall Stability, retained strength and Indirect Tensile Strength (ITS) tests have been carried out on asphalt mixture. The results proved that using nano carbon can largely improve Marshall Stability, ITS and index of retained strength. On the other hand, it is found that the penetration at high temperatures decreased significantly despite there was a slight decrease in it at low temperatures; therefore, it is recommended that modified mixtures - i.e. those with nano carbon - can greatly withstand permanent deformation in comparison with control mixtures.
机译：道路沥青路面中的常见故障包括疲劳，车辙和开裂。通常，这些故障通常是由于沥青混合物的温度敏感性或水分敏感性或其组分 - 沥青或聚集体之一。许多研究最近处理了沥青路面的这些问题，提出了几种解决方案。使用纳米材料是这些先进解决方案之一。研究使用纳米材料作为改善沥青混合特性的机制的可行性是该项目的目的。具体地，已经通过实验研究了纳米碳在改善道路铺路中使用的沥青混合物的潜在影响。已经进行了对沥青和沥青混合物的几次测试，已经进行了，没有纳米碳。渗透，软化点和延展性的基极和改性沥青上进行的，而马歇尔稳定性，残留强度和间接拉伸强度（ITS）试验已在沥青混合物中进行。结果证明，使用纳米碳可以大大提高马歇尔稳定性，其保留强度指数。另一方面，尽管在低温下，但在低温下略有下降，高温下的渗透性显着下降;因此，建议改进的混合物 - 即纳米碳的混合物 - 与对照混合物相比，可以大大地承受永久性变形。

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