Rheological Performance and UV Aging Resistance of Buton Rock Asphalt and Styrene-Butadiene-Styrene Composite Modified Asphalt Under High Temperature
Source abstract
Abstract
This study aims to investigate the high-temperature rheological properties and ultraviolet (UV) aging resistance of Buton rock asphalt (BRA) and styrene-butadiene-styrene (SBS) composite modified asphalt. Initially, the surface morphology of BRA and SBS was examined using scanning electron microscopy. The high-temperature rheological properties and chemical characteristics of BRA modified asphalt, SBS modified asphalt, and BRA/SBS composite modified asphalt before and after UV aging were investigated. The results reveal that numerous pores and folds on the surface of BRA form a distinctive honeycomb-like structure that offers a large surface area, enhancing asphalt adsorption and thereby improving the high-temperature properties of asphalt. The addition of SBS enhances the elastic response of Buton rock asphalt modified asphalt (BRAMA). The Fourier transform infrared (FTIR) spectra indicate that BRA effectively reduces the carbonyl and sulfoxide index of asphalt, and the complex modulus aging index (CMAI) and phase angle aging index (PAI) suggest that the BRA/SBS composite modified asphalt exhibits better resistance to ultraviolet aging.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Infrastructure Maintenance and Monitoring · Grouting, Rheology, and Soil Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Vehicle Engineering, Guizhou Technological College of Machinery and Electricity, Duyun 558000, China
Chongqing Architectural Design Institute Co., Ltd., Chongqing 400015, China
School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400047, China
Department of Electrical Engineering, Guizhou Technological College of Machinery and Electricity, Duyun 558000, China
School of Transportation and Municipal Engineering, Chongqing Jianzhu College, Chongqing 400072, China
Guizhou Zhongsheng Highway Maintenance Technology Research Co., Ltd., Guiyang 550014, China
School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
Funding
National Natural Science Foundation of China
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