Influencing Factors of Road Performance of Bio-inspired Warm Mix Recycled Asphalt Mixture
YANG Yanhai
SUN Yi
JIN Xin
YANG Ye
Abstract：Through orthogonal experimental design,the air void,high and low temperature performance,and water stability of bio-inspired warm mix recycled asphalt mixture were optimized,yielding the optimal combination of parameters.Concurrently,Fourier transform infrared spectroscopy(FTIR)technology was utilized to conduct analysis of the mechanism by which the bio-inspired warm mix rejuvenator affects the aged styrene-butadiene-styrene(SBS)modified asphalt.The results indicate that the performance of the warm mix recycled asphalt mixture is optimized under conditions of a specimen compaction temperature of 130℃,a reclaimed asphalt pavement(RAP)content of 50%,and a bio-inspired warm mix rejuvenator content of 4.5%.The incorporation of 4.5%bio-inspired warm mix rejuvenator can effectively restore the functional group structure of aged SBS modified asphalt,further validating the accuracy of the macroscopic performance optimization of the bio-inspired warm mix recycled asphalt mixture.
Keywords：road engineeringwarm mix recycled asphalt mixturebio-inspired warm mix rejuvenatorpavement performance
Publication Date：2025-04-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 340-349 )