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- W4220920713 abstract "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 prepared using in situ and hot blending methods using an overhead stirrer mixer at a blending temperature of 160°C for 2 h. Fourier transform infrared revealed a strong interaction of APP or APP‐g‐MA with bitumen. The ultimate compressive strength, acquired in Mega Pascal (MPa) units, was increased from 0.24 MPa at 5 wt% APP to 0.70 MPa at 20 wt% APP loading. Scanning electron microscopy micrographs manifested dispersed phases of APP in bitumen due to the high temperature and shearing application with overhead stirring. In situ and hot blended specimens exhibited better mechanical, thermal, and structure–property relations. This research highlights the novelty in terms of property optimization and advancements at a high‐weight percentage of the modifier (i.e., 20 wt%) along with emphasizing the comparison of three different fabrication techniques; however, the previous research manifested the advancements in the properties of polymer and bitumen blends at low concentrations of polymers." @default.
- W4220920713 created "2022-04-03" @default.
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- W4220920713 date "2022-03-26" @default.
- W4220920713 modified "2023-10-16" @default.
- W4220920713 title "<scp>High‐performance</scp> atactic polypropylene modified bitumen blends fabricated via conventional, hot, and <scp>in‐situ</scp> blending techniques" @default.
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- W4220920713 doi "https://doi.org/10.1002/app.52378" @default.
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