Solvent deasphalted (SDA) residue is produced from the solvent deasphalting process, one of the heavy oil refining processes, and is considered to be more difficult to form or process because more oil is removed than asphalt used as a bituminous material for road pavement. In this study, to evaluate the applicability of the SDA residue as a crack sealant, it was modified with oil, crumb rubber, and SBS copolymer, investigated cone penetration, softening point, resilience, asphalt compatibility, and bond test at low-temperature. The various tests conclude that SBS copolymer and crumb rubber improved the elasticity of the SDA residue, and the addition of oil caused ductile behaviour. By adjusting the proportions of the additives, SDA residue-based sealant has been produced that meets the requirements, indicating that the SDA residue could be used as a crack sealant.

溶剂脱沥青 (SDA) 残渣由溶剂脱沥青工艺（重油精炼工艺之一）产生，并且被认为更难形成或加工，因为与用作路面沥青材料的沥青相比，去除的油更多。在这项研究中，为了评估 SDA 残渣作为裂缝密封剂的适用性，用油、粒状橡胶和 SBS 共聚物对其进行了改性，研究了锥入度、软化点、回弹性、沥青相容性和低温粘合试验。各种测试得出结论，SBS 共聚物和粒状橡胶提高了 SDA 残留物的弹性，而油的添加导致了延展性行为。通过调整添加剂的比例，生产出符合要求的SDA残渣型密封胶，