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Polymer modified asphalt is increasingly used in road surfacing. Unmodified asphalt is sensitive to changes in temperature, it becomes brittle and cracks in cold weather and soften in high temperature, causing rutting and surface deformation. This research aims to prepare hot mix asphalt (HMA) for paving using polymer prepared from stearyl acrylate and methyl methacrylate and styrene in molar ratios: 0.5:0.5:0.2 and 0.5:0.5:0.5, respectively. The solid materials in the mix include normal and highly porous aggregates. 4,6,8% of two polymers by weight of asphalt were used to prepare special binders. The samples were tested for physical, chemical, ageing, SEM and TGA. The results revealed that the prepared hot mix asphalt (HMA) polymer had high performance as compared to ordinary one and the two polymer prepared could be used in road construction.

A STUDY ON MARSHALL PROPERTIES FOR POLYMER MODIFIED BITUMEN IN DIFFFERENT MOLAR RATIOS