Using Sustainable Oil Shale Waste Powder Treated with Silane Coupling Agent for Enriching the Performance of Asphalt and Asphalt Mixture

Xuedong Guo, Xing Chen, Yingsong Li, Zhun Li and Wei Guo
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Xuedong Guo: School of Transportation, Jilin University, Changchun 130022, China
Xing Chen: School of Transportation, Jilin University, Changchun 130022, China
Yingsong Li: School of Transportation, Changchun college of architecture, Changchun 130604, China
Zhun Li: School of Transportation, Jilin University, Changchun 130022, China
Wei Guo: School of Transportation, Jilin University, Changchun 130022, China

Sustainability, 2019, vol. 11, issue 18, 1-23

Abstract: The increase in cost of bitumen and polymer modifiers and the importance of silicon waste material management have encouraged pavement researchers to use reusable sustainable sources. Oil shale waste powder (OSP) is considered a silicon waste material, and when used in pavement prevents leaching. However, OSP, as an acidic inorganic material, has compatibility issues with asphalt, and its use with ashpalt should be considered carefully. This paper investigates the pavement performance and modification mechanism of OSP and silane coupling agent (SCA) composite modified asphalt and asphalt mixture according to conventional physical property tests: thermogravimetric analysis (TGA), fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and a pavement performance test. The test results showed that the incorporation of OSP and SCA improved the overall properties of asphalt and asphalt mixture and the direct mixing method is more effective than the surface pretreatment method for the modification of composite modification of asphalt. Moreover, the FTIR test and DSC test indicated that the incorporation of OSP and SCA creates new chemical bonds and changes the form and quantity of the crystalline component and the transformation of components in the bitumen.

Keywords: Oil shale waste powder; Silane coupling agent; Composite modified asphalt; modification mechanism; pavement performance (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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