Ethylene–propylene–diene–monomer (EPDM) is a high-quality synthetic rubber widely used in non-tyre automotive parts. Waste EPDM rubber is generated at several industries, manufacturing units, and automobile repair/service stations. The present study aims at the evaluation of asphalt binders and mixes with waste EPDM as a modifier. Modification was attempted with four EPDM contents (2%, 4%, 6% and 8% by binder weight). Storage stability was checked for the modified blends with and without a crosslinking agent (sulphur). Binder characterisation was done through penetration, softening point, temperature and frequency sweeps, master curve, multiple stress creep recovery, Burger’s model fit, and binder yield energy tests. Performance of bituminous mixtures with EPDM-modified binders was also evaluated through Hamburg wheel tracking, stiffness modulus, and indirect tensile strength tests. The incorporation of EPDM enhanced the rutting and fatigue performance of the binder. Mixtures showed better stiffness, rutting resistance and tensile strength compared to those with control mixes.

三元乙丙橡胶（EPDM）是一种广泛用于非轮胎汽车零部件的优质合成橡胶。废三元乙丙橡胶产生于多个行业、制造单位和汽车维修/服务站。本研究旨在评估沥青结合料和混合料，以废 EPDM 作为改性剂。尝试使用四种 EPDM 含量（按粘合剂重量计 2%、4%、6% 和 8%）进行改性。检查含有和不含交联剂（硫）的改性共混物的储存稳定性。通过渗透、软化点、温度和频率扫描、主曲线、多应力蠕变恢复、Burger 模型拟合和粘合剂屈服能测试来完成粘合剂表征。还通过汉堡车轮轨迹、刚度模量、和间接拉伸强度测试。EPDM 的加入增强了粘结剂的车辙和疲劳性能。与对照混合物相比，混合物表现出更好的刚度、抗车辙性和拉伸强度。