Characterization and modelling of creep and recovery behaviour of waterborne epoxy resin modified bitumen emulsion

Bitumen emulsion has been widely used as the tack coat and surface treatment material for asphalt pavement. A major advantage of this is it does not require heating during construction. However, faces concern low mechanical strength, especially at high service temperatures. To improve strength bitumen emulsion, various research efforts have made to use waterborne epoxy resin a modifier produce modified (WEB). better understand WEB paving material, study aims investigate microstructure evaluate high-temperature performance model creep recovery behaviour residues. First, confocal laser scanning microscopy was employed fluorescence The temperature sweep dynamic shear modulus tests were then conducted characterize viscoelastic properties residues within range 4–76 °C, multiple stress (MSCR) 50 60 °C 70 their performance. Then, complex fitted with Arrhenius activation energy calculated; test results modelled both power law generalized Burgers model. Finally, average percent non-recoverable compliance determined. It found that rutting resistance can be dramatically increased by incorporating resin, in comparison