Rheological properties and effects of aging on acrylated epoxidised soybean oil monomer-modified asphalt binder. Issue 2 (17th February 2020)

• Record Type: Journal Article
• Authors: Chen, Conglin; Podolsky, Joseph H.; Williams, R. Christopher; Cochran, Eric W.
• Is Part Of: Road materials and pavement design. Volume 21:Issue 2(2020)
• Page Start: 347
• Page End: 373
• Publication Date: 2020-02-17
• Subjects: acrylated epoxidised soybean oil (aeso) -- modified asphalt -- rheology -- van Gurp-Palmen curves -- master curves -- aging susceptibility; Road materials -- Periodicals; Highway engineering -- Periodicals; Pavements -- Design and construction -- Periodicals; 625.805
• DOI: 10.1080/14680629.2018.1491883
• Languages: English
• ISSNs: 1468-0629

Abstract

Abstract : This investigation examines the rheological properties and effects of aging on laboratory produced acrylated epoxidised soybean oil (AESO) monomer (LabAESO) and commercially available AESO (ComAESO)-modified asphalt binders at various concentration levels. The rheological curves show that the polymerisation of AESO occurs during blending with the polymer and that the entanglement characteristic curvature appears gradually as AESO concentration level increases. The findings indicated that sufficiently high level of LabAESO is necessary to affect the neat asphalt binder's rheological properties as shown in Van Gurp-Palmen curves, master curves, and Black diagrams. The research results revealed that AESO monomer has shown great potential to be used as a modifier in asphalt performance modification. Additionally, LabAESO works better on reducing aging susceptibility than ComAESO, and that is shown clearly with increasing dosage levels of LabAESO and ComAESO.