Abstract
Highway pavements are usually subjected to many types of failures “distresses” since these pavements are exposed to traffic load and weather conditions. Therefore, many agents tried to enhance the asphalt mixes to reduce the possibility and severity of distresses by adding additives to replace small amount of binder (bitumen). SBS in one of the most used additives that been used in many states. In recent years, the SBS has been used in pavement of about 1.2km to be experimental sections within Basra-Baghdad expressway. This paper examines the pavement condition index (PCI) for the experimental section after about six years form been paved and exposed to traffic. So far, only minimal distresses including cracks and potholes were recorded without reducing the initial PCI value of 100. Further work will be followed to examine the mechanical properties of the layers such as the indirect tensile strength and rutting resistance.
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