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首页> 外文期刊>E3S Web of Conferences >Characteristics Buton Natural Asphalt-Rubber (BNA-R) on the Performance Improvement of Warm Mix Asphalt Using Natural Zeolite
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Characteristics Buton Natural Asphalt-Rubber (BNA-R) on the Performance Improvement of Warm Mix Asphalt Using Natural Zeolite

机译:天然沥青橡胶(BNA-R)对天然沸石改善热拌沥青性能的影响

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The decrease in the ability of service of pavement can be caused by the durability factor in the pavement layer in receiving heavy traffic load and the temperature of the pavement. Permanent deformation is one of the criteria of failure of asphalt mixture. Performance assessment of the asphalt mixture can be observed from the rheological properties of asphalt binder. The use of BNA-R in this study is intended to modify the characteristics of bitumen penetration grade 60 / 70 used in warm mix asphalt. Warm mix asphalt with lower temperatures of mixing and compaction than conventional asphalt mixtures was chosen because it is more environmentally friendly. To reduce the temperature in this warm asphalt technology is achieved by using natural zeolite. Both of these materials are local materials that are widely available in Indonesia. The rheology of asphalt 60/70 modified with BNA-R indicates that the addition of BNA-R in the base asphalt increase the complex modulus value and decrease the phase angle value. These values were related to the performance of mixture in the permanent deformation criteria. Reducing the temperature of mixing and compaction should be balanced with modifying the asphalt binder used. Rutting due to permanent deformation can resulted in inconvenience to the passengers and can lead to high costs of road maintenance. To determine the permanent deformation of asphalt mix with material combinations was performed through the wheel tracking test machine with 3,780 cycles for 3 hours. The results shows that after test track over 7 thousand passes have seen permanent deformation characteristics of asphalt concrete mixture with a variation of the characteristics of bitumen.
机译:路面服务能力的下降可能是由于承受高交通负荷的路面层中的耐久性因素和路面温度引起的。永久变形是沥青混合料破坏的标准之一。从沥青粘合剂的流变性质可以观察到沥青混合物的性能评估。在本研究中,BNA-R的使用旨在改变用于暖拌沥青中的60/70级沥青渗透特性。选择了比传统沥青混合物的混合和压实温度低的热拌沥青,因为它对环境更友好。为了降低温度,在这种温暖的沥青技术中使用了天然沸石。这些材料都是本地材料,可在印度尼西亚广泛使用。用BNA-R改性的沥青60/70的流变学表明,在基础沥青中添加BNA-R会增加复数模量值并减小相角值。这些值与永久变形标准中的混合物性能有关。降低混合和压实的温度应与改性所用的沥青粘合剂达到平衡。由于永久变形而引起的车辙会给乘客带来不便,并可能导致高昂的道路维护成本。为了确定具有材料组合的沥青混合料的永久变形,通过轮循试验机以3,780个循环进行了3个小时。结果表明,经过7千次测试后,沥青混凝土混合料的永久变形特征有所变化,沥青的特征也有所变化。

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