Comparative study on multi-dimensional characteristics of crumb rubber-modified asphalt mixtures with varied content
Year: 2025
Type: conference-paper
Abstract: To clarify the impact of increased crumb rubber content on asphalt mixture performance, five aggregate gradations and three modified asphalt binders were combined to formulate eight asphalt mixtures for multi-dimensional comparative testing. Key findings: 1) High-content rubberized asphalt mixtures exhibit superior road performance compared to SBS-modified asphalt counterparts; 2) 40% rubber-modified mixtures demonstrate better fatigue resistance across gradations than 30% blends, with performance advantage peaking then diminishing as strain levels increase; 3) Rubberized asphalt mixtures show significant fatigue life advantages over SBS-modified types; 4) The increasing nominal maximum aggregate size (NMAS) reduces fatigue resistance within the same rubber content group, with accelerated fatigue life degradation under elevated strain conditions.
Author: Xiangping Wang
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4413190231