The interest in utilization of renewable resources like vegetable oils in the modification of asphalt binders has been increasing for last few years. This study aims to evaluate the sunflower oil (SO) compatibility with three types of asphalt binders for its future application in pavement and building construction. The chemical changes, aging behavior and mixing uniformity of binders due to addition of SO were studied through storage stability and fourier transform infrared (FTIR) analysis. The potential of SO modification in binders was assessed by using rotational viscometer, dynamic shear rheometer and bending beam rheometer tests. The Superpave, Glover-Rowe diagram and master curve were used for different tests analysis. FTIR results revealed the induction of new peaks of esterification at 1163 cm −1 and 1745 cm −1 in binders mixed with SO. The SO modified binders showed antiaging behavior which may be due to the presence of α-tocopherol in SO. It was observed that use of SO in binders improved fatigue parameter up to 58%. The linear amplitude sweep test results showed that the addition of SO increased the fatigue life of asphalt binders. The sunflower oil as an additive in asphalt binders will be a sustainable and durable material in pavement and building constructions.

中文翻译：

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葵花籽油与沥青粘合剂的相容性：从可再生资源获得材料的一种方式

近几年来，人们对利用植物油等可再生资源改性沥青粘合剂的兴趣不断增加。本研究旨在评估向日葵油 (SO) 与三种类型的沥青结合料的相容性，以使其在未来在路面和建筑施工中的应用。通过储存稳定性和傅里叶变换红外 (FTIR) 分析研究了由于添加 SO 引起的粘合剂的化学变化、老化行为和混合均匀性。通过使用旋转粘度计、动态剪切流变仪和弯曲梁流变仪测试来评估 SO 在粘合剂中的改性潜力。Superpave、Glover-Rowe 图和主曲线用于不同的测试分析。FTIR 结果显示，在与 SO 混合的粘合剂中，在 1163 cm -1 和 1745 cm -1 处诱导了新的酯化峰。SO 改性的粘合剂表现出抗老化行为，这可能是由于 SO 中存在 α-生育酚。据观察，在粘合剂中使用 SO 可将疲劳参数提高 58%。线性振幅扫描试验结果表明，SO的加入提高了沥青结合料的疲劳寿命。向日葵油作为沥青粘合剂的添加剂将成为路面和建筑结构中一种可持续且耐用的材料。