Journal
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
Volume 31, Issue 6, Pages -Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)MT.1943-5533.0002731
Keywords
Epoxy asphalt; Mixture; Glass aggregate; Laboratory testing
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Applying glass aggregate in asphalt mixtures is an effective approach to addressing environmental pollution. In this research, epoxy asphalt was adopted instead of conventional asphalt. The experiments were performed to investigate the influence of glass aggregate on the performance of the epoxy-asphalt mixture compared with styrene-butadiene-styrene (SBS) copolymer modified asphalt. The results show that for the two asphalt mixtures, the optimum binder content, void, and density decrease with increases in glass aggregate content. The Marshall stability, soaked Marshall stability, tensile strength ratio, antirutting, and low-temperature property of the epoxy-asphalt mixture are slightly affected by the glass aggregate content, significantly different from those of the SBS-modified asphalt mixture. In addition, the epoxy-asphalt mixture blended with glass aggregate possesses good antifriction and reflective properties. Thus, in the epoxy-asphalt mixture, the high content of glass aggregate can be utilized to attain superior performance without an antistripping agent and mitigate increasing environmental pollution.
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