This research seeks to interpret the component analysis of an innovative bio-asphalt binder using guayule resin at high concentrations and crumb rubber modifier (CRM). Such asphalt modification aims to minimize the dependency on base asphalt and provide new solutions concerning sustainable, flexible pavement industry. Guayule resin is a promising bioresource for asphalt replacement. The provided interpretation could help in understanding the asphalt-rubber-guayule interaction mechanism. Fourier transform infrared spectroscopy (FTIR), supported by thermo-gravimetric analysis (TGA), was used to investigate the component analyses of guayule resin composition, asphalt-guayule interaction, and asphalt-rubber-guayule interaction, followed by oxidative aging behavior. Additionally, the rheological properties at high and intermediate temperatures were provided to link the microscale properties with the final product performance. The study clarified the distinct carbon and hydrogen compositional elements of guayule resin. Asphalt and guayule resin had similarities in component composition and rheological behavior with temperature susceptibility. Asphalt-guayule interaction yielded a physical blending, with no chemical reaction. Rubber seems to dissolve in both asphalt-rubber and asphalt-rubber-guayule interactions evenly. Devulcanization occurred, resulting in a partial migration of CRM polymeric components to the liquid binder. This was reflected in the enhanced performance of asphalt-rubber-guayule blends at high temperatures. However, due to the strong oxidation bonding chains attributed to guayule resin, the oxidative aging negatively affected the guayule-based binder performance reflected on the intermediate temperature performance. The mix performance was initiated with the guayule-based binder's successful performance against rutting susceptibility, comparative to the base asphalt.

这项研究旨在解释一种创新的生物沥青粘合剂的成分分析，该粘合剂使用高浓度的愈创木酚树脂和碎胶改性剂（CRM）。此类沥青改性旨在最大程度地减少对基础沥青的依赖性，并提供有关可持续，柔性路面工业的新解决方案。Guayule树脂是一种有前途的沥青替代生物资源。提供的解释可能有助于理解沥青-橡胶-愈创木胶的相互作用机理。在热重分析（TGA）的支持下，傅里叶变换红外光谱（FTIR）用于研究愈创木酚树脂成分，沥青-愈创木酚相互作用，以及沥青-橡胶-愈创木酚相互作用的组分分析，以及随后的氧化老化行为。此外，提供了高温和中温下的流变性能，以将微观性能与最终产品性能联系起来。研究澄清了愈创木脂树脂的独特碳和氢组成元素。沥青和愈创树胶树脂在组分组成和流变行为与温度敏感性上具有相似性。沥青与瓜胶树的相互作用产生了物理共混，没有化学反应。橡胶似乎均匀地溶解在沥青-橡胶和沥青-橡胶-愈创木胶的相互作用中。发生脱硫，导致CRM聚合组分部分迁移到液体粘合剂中。这反映在高温下沥青-橡胶-愈创木胶混合物的增强性能中。但是，由于番石榴油树脂具有很强的氧化键链，氧化老化对中温性能有负面影响。相比于基础沥青，番石榴油基粘合剂具有出色的抗车辙敏感性的性能，从而启动了混合性能。