High‐performance atactic polypropylene modified bitumen blends fabricated via conventional, hot, and in‐situ blending techniques

Abstract

This research presents an investigation on the incorporation of atactic polypropylene (APP) as a modifier in bitumen at weight concentrations from 0 to 30 wt%. An APP-modified bitumen (APPMB) was prepared by conventional, hot, and in situ blending and characterized for mechanical, morphological, thermal, structural, and physical properties. APPMB specimens using maleic anhydride (MA) functionalized polymer at its optimized concentration of 20 weight percentage (wt%), along at several other concentrations, were pre-

Increasing the Adhesion of Bitumen to the Surface of Mineral Fillers through Modification with a Recycled Polymer and Surfactant Obtained from Oil Refining Waste

“…Thus, by changing the type and concentration of the polymer, it is possible to obtain composite materials with a controlled set of physical and mechanical properties. Currently, the following types of polymers have found application as a polymeric bitumen modifier: elastomers—SBS (styrene–butadiene–styrene) [ 31 ], NBR (nitrile butadiene rubber) [ 32 ], thermoplastics—EVA (ethyl vinyl acetate) [ 33 , 34 ], EMA (ethylene methyl acrylate) [ 34 ], APP (atactic polypropylene) [ 35 ], PE (polyethylene) [ 36 ], and thermosetting resins [ 37 ]. Projects have been implemented (Canada, Kazakhstan) for the modification of bituminous binders with recycled polyethylene waste [ 38 ].…”