Study on Properties of Siberian Cocklebur Bionic Harmless Red Mud Modified Asphalt DOI
Fuhu Han, Li Cao,

Yating Luo

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

ABSTRACT This study employed solid waste red mud (RM) as the primary material, which underwent dopamine self‐polymerization and esterification reactions to synthesize biomimetic composite materials based on Siberian cocklebur with high surface area (GA‐CDA‐RM). Experimental data indicate that GA‐CDA‐RM enhances high‐temperature rheological properties, rutting resistance, low‐temperature crack resistance of asphalt binder while reducing leaching heavy metal ions in RM. Leaching concentrations six metals decreased 10 μg/L, significant reductions four additional ions. At 46°C, binders modified a 4% mass fraction demonstrated substantial improvements: modulus ( G *) increased by 94.55% compared styrene–butadiene–styrene (SBS) (MA), both storage ′) loss ″) 96.99% 93.88%, respectively. 64°C 0.1 kPa, deformation recovery rate R ) GA‐CDA‐RM@MA improved 50.88% MA, at −12°C, m ‐value 14.8%. introduces novel approach for environmentally sound treatment reuse RM, providing guidance theoretical framework its recycling endeavors. It holds practical, environmental, reference value green sustainable pavement.

Language: Английский

Study on Properties of Siberian Cocklebur Bionic Harmless Red Mud Modified Asphalt DOI
Fuhu Han, Li Cao,

Yating Luo

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

ABSTRACT This study employed solid waste red mud (RM) as the primary material, which underwent dopamine self‐polymerization and esterification reactions to synthesize biomimetic composite materials based on Siberian cocklebur with high surface area (GA‐CDA‐RM). Experimental data indicate that GA‐CDA‐RM enhances high‐temperature rheological properties, rutting resistance, low‐temperature crack resistance of asphalt binder while reducing leaching heavy metal ions in RM. Leaching concentrations six metals decreased 10 μg/L, significant reductions four additional ions. At 46°C, binders modified a 4% mass fraction demonstrated substantial improvements: modulus ( G *) increased by 94.55% compared styrene–butadiene–styrene (SBS) (MA), both storage ′) loss ″) 96.99% 93.88%, respectively. 64°C 0.1 kPa, deformation recovery rate R ) GA‐CDA‐RM@MA improved 50.88% MA, at −12°C, m ‐value 14.8%. introduces novel approach for environmentally sound treatment reuse RM, providing guidance theoretical framework its recycling endeavors. It holds practical, environmental, reference value green sustainable pavement.

Language: Английский

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