Based on the experimental data,taking expansion rate and half-life as evaluation indexes,the correlation function of asphalt temperature,water dosage and spray pressure is established by method of multi-dimensional modeling,curve projecting,data fitting and system identification.This solves the coordination problem of multi-parameters in the development process of asphalt foam control system.The function is the theoretical foundation for the study of asphalt foam control system.It also provides new(ideas) f...