Study on factors influencing the emulsification performance of asphalt emulsifiers

Abstract As a crucial material for road repairs, the emulsification performance of emulsified asphalt directly affects its storage stability and construction efficiency. This study systematically analyzes the effects of emulsifier blending, emulsification temperature, soap solution pH, and stabilizer dosage on emulsification performance. The results demonstrate that the emulsifier blend of Y13 and Y2 at a ratio of 8:2 achieved optimal emulsification and stability. The ideal emulsification temperature was found to be 65 ± 5 °C, with a soap solution pH range of 2 ∼ 3, and the stabilizer dosage should be controlled within 3.0‰. This study provides theoretical guidance for the design and application of asphalt emulsifiers.