An overall review: Modified asphalt binder containing sasobit in warm-mix asphalt technology

Increasing emission of greenhouse gases is an environmental issue,and it is a great concern to curb this problem from further harm to the environment. warm-mix asphalt (wma) is one of efforts to curb a reduction in the temperature at which asphalt mixes are produced. wma can reduce the temperature to 100°c and even lower without compromising the performance of asphalt binder. wma has various benefits such as,reduction of asphalt binder temperature,reduction in energy consumption and less air pollution. it reduces short-term aging,compacting effort and decreases temperature drop during transportation. sasobit is one of the organic additives of warm mix asphalt. it is used as a binder modifier to produce rut resistant mixtures. it provides the option of reducing fume emissions,saving energy and reducing production cycles. therefore,sasobit is the preferred additive for warm-mix asphalt (wma). in addition,complex shear modulus will be determined to find the rutting factor and fatigue factor for the asphalt binder (g*/sinδ and g*sinδ respectively). the overall purposes of this study are to determine the importance of using wma as a green pavement and introducing sasobit for modifying virgin asphalt binder. © 2015 penerbit utm press. all rights reserved