Mixing ratio design of Xinjiang SBS basalt fiber composite modified asphalt based on response surface method
This study aims to optimize the performance of SBS basalt fiber composite modified asphalt to ad-dress the extreme climate conditions in the Xinjiang region.Karamay K-90 asphalt and Tarim 90#A asphalt were selected as base materials,combined with non-oiled SBS4303 modifier and basalt chopped fibers.The impact of each component's proportion on asphalt performance was evaluated using Box-Behnken response surface design and regression analysis.The results showed that SBS significantly improved the elasticity and low-temperature per-formance of the asphalt,while basalt fibers enhanced high-temperature stability and crack resistance.The opti-mized mix ratio increased the ductility of the asphalt at low temperatures by up to 119％,raised the softening point by 12.8℃,and demonstrated excellent anti-aging properties,providing reliable technical support for road con-struction in the Xinjiang region.
万方数据
维普
