Nanoclays have been successfully introduced into the asphalt binder, either separately or into the polymer modified asphalt binder resulting in the improved mechanical and rheological properties of the asphalt binder. The present research study was undertaken to evaluate the influence of organically modified montmorillonite clay (OMMT) in pure asphalt binder and also in styrene butadiene styrene (SBS) modified asphalt binder. The quantity of OMMT and SBS was varied from 2–6 percent by the weight of the base asphalt binder. The addition of OMMT in an appropriate amount can dramatically enhance the compatibility between SBS and base asphalt. It was observed from the results that modified binders exhibited higher Superpave rutting parameter (G*/sinδ) indicating an improvement in the stiffness of the binder. It was also observed that modified binders (OMMT/SBS) does not exhibit phase separation under high temperatures. Thus high temperature stoage stability could be improved by choosing a proper amount of OMMT and forming an exfoliated structure. Thus it can be concluded that OMMT added to the polymer modified binder (SBS) helps in obtaining better physical and rheological properties on a condition that clay scatters into the binder at the nanoscopic level.

纳米粘土已经成功地单独或引入聚合物改性的沥青粘合剂中，从而改善了沥青粘合剂的机械和流变性能。进行本研究以评估有机改性的蒙脱土（OMMT）在纯沥青粘合剂中以及在苯乙烯丁二烯苯乙烯（SBS）改性沥青粘合剂中的影响。OMMT和SBS的含量在基础沥青粘合剂重量的2％至6％之间变化。适量添加OMMT可以显着增强SBS与基础沥青之间的相容性。从结果可以看出，改性粘结剂表现出更高的Superpave车辙参数（G * /sinδ）表明粘合剂的刚度得到改善。还观察到，改性粘合剂（OMMT / SBS）在高温下不显示相分离。因此，通过选择适量的OMMT并形成剥落的结构，可以提高高温存储的稳定性。因此可以得出结论，在粘土以纳米级水平分散到粘合剂中的条件下，添加到聚合物改性的粘合剂（SBS）中的OMMT有助于获得更好的物理和流变性。