Determination of best foaming parameters of modified asphalt using response surface analysis method

Abstract

In order to explore the foaming principle of SBS modified asphalt, three parameters including asphalt temperature, water consumption and water temperature, were selected to study the foaming effect of modified asphalt. After the experimental data were analyzed, the second-order mathematical model was fitted under the interaction of different foaming parameters. Response surface analysis was adopted when variance analysis met the requirement of significant level, and three-dimensional response surface analysis diagram was drawn to optimize the foaming parameters for the best foaming effect.