The realistic prediction of long term performance of hot mix asphalt (HMA) has been a challenging task for the pavement industry. This study aims to investigate the effect of soybean derived oil and aggregate petrology on the HMA performance. The properties of HMA were evaluated using Superpave gyratory compactor (SGC), indirect tensile (IDT) strength, dynamic modulus and semicircular bend (SCB) tests. The SGC results indicated that soybean derived oil has no adverse effect on compaction of HMA. The tensile strength ratio (TSR) analysis showed that the presence of quartz and feldspar in aggregates could affect the durability of HMA. The TSR results found that soybean oil improved resistance of HMA against moisture susceptibility. The SCB test results showed that the soybean oil improved the fracture resistance of asphalt mixes. The dynamic modulus results revealed that soybean derived oil decreased the stiffness of HMA.

对热拌沥青 (HMA) 的长期性能进行现实预测一直是路面行业的一项具有挑战性的任务。本研究旨在研究大豆衍生油和聚合岩石学对 HMA 性能的影响。使用 Superpave 回转压实机 (SGC)、间接拉伸 (IDT) 强度、动态模量和半圆弯曲 (SCB) 测试来评估 HMA 的性能。SGC结果表明大豆衍生油对HMA的压实没有不利影响。抗拉强度比 (TSR) 分析表明，石英和长石在骨料中的存在会影响 HMA 的耐久性。TSR 结果发现，大豆油提高了 HMA 对湿敏性的抵抗力。SCB 测试结果表明，大豆油提高了沥青混合料的抗断裂性。