Mineral fiber-asphalt interface thickness evaluation method

The invention discloses a mineral fiber-asphalt interface thickness evaluation method. The method comprises the specific steps that a scanning electron microscope is used for observing interface area morphology between different mineral fibers and asphalt materials, and an X-ray energy disperse spectroscopy is used for scanning interface elements between the mineral fibers and asphalt. And determining the maximum displacement difference between the interface element point and the scanning point as the thickness of the interface transition area. According to the method, morphological observation and elemental qualitative and quantitative analysis are performed on the fiber-asphalt sample according to the mineral fiber-asphalt interface microstructure, so that the interface morphology and interface element distribution between the fiber and the asphalt are obtained, and then the interface characteristics between the fiber and the asphalt are represented; according to the method, the defects that the interface m