DEVELOPMENT OF ALTERNATIVE BND 100/130 ROAD BITUMEN USING WASTE-BASED MODIFIER: EXTRACT RESIDUE
Authors
Saidmurudov R.A, Saydaxmedov SH.M., Yusupov F.M., Muxtorov N.SH.
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This study investigates the modification of BND 60/90 road bitumen using industrial waste materials, including extract residue with the objective of producing an alternative BND 100/130 grade bitumen. The modifiers were incorporated into the base binder through thermal mixing, and the resulting samples were subjected to various standard tests such as penetration, ductility, brittleness temperature, and flash point. The results showed that the penetration and ductility of the bitumen increased with the addition of modifiers, indicating enhanced flexibility. At the same time, the brittleness temperature decreased, suggesting improved resistance to low-temperature cracking. The flash point also significantly improved, enhancing thermal safety. These findings demonstrate that waste-derived additives can effectively enhance the performance of road bitumen, offering a sustainable and cost-effective alternative to conventional binders for road construction.
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Authors
Saidmurudov R.A, Saydaxmedov SH.M., Yusupov F.M., Muxtorov N.SH.
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