Preparation and performance evaluation of Non-sticky wheel emulsified asphalt

Abstract The current emulsified asphalt exhibits a notable deficiency in its adhesion to construction vehicle tires, which compromises interlayer bonding. To address this issue, a Non-sticky Wheel Emulsified Asphalt was developed using various matrix asphalts, modifiers, and modifier dosages with an emphasis on enhancing the evaporation residue's softening point. This study assessed the technical properties of the Non-sticky Wheel Emulsified Asphalt by examining standard viscosity, storage stability, and evaporation residue. Specifically, the viscosity wheel performance test confirmed its superior non-stick wheel effect at 60°C compared to conventional emulsified asphalt and market-available SBR modified emulsified asphalt, indicating significant practical engineering value. Additionally, interlaminar shear and pull-out tests were conducted to evaluate the bonding performance of three different types of emulsified asphalt under varying temperatures. The results revealed that the Non-sticky Wheel Emulsified Asphalt demonstrated higher bond strength across a broader range of conditions. Comprehensive performance assessments validated that this formulation complies with relevant specifications, offering exceptional interlayer bonding capabilities and enhanced non-stick wheel properties.