Investigating the Characteristics of Modified Bitumen with Polyphosphoric Acid Polymers and Recycled Rubber
Sajad Chavoshi Najfabadi,
Mohammad Mehdi Khabiri,
Hamed Khani Sanij
Abstract:The impact of polyphosphoric acid (PPA) polymers and crumb rubber (CR) on bitumen's properties to enhance its performance was examined in this study. Laboratory samples were created with varying percentages of PPA (0.5 % to 2 %) and CR (6 % to 18 %) and subjected to extensive testing. Findings indicated that the combination of PPA and CR led to notable improvements in bitumen performance, including increased viscosity, softening point, elasticity, and recovery rates at elevated temperatures. Specifically, samp… Show more
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