Three-dimensional digital aggregate library rapid establishment and evaluation method based on X-ray CT

The invention discloses a three-dimensional digital aggregate library rapid establishment and evaluation method based on X-ray CT, and relates to the field of aggregate library construction. The method aims at solving the problems that an existing aggregate library building method is large in error and poor in adaptability. According to the scheme, the method comprises the steps that the engineering granular material is obtained to serve as a sample, the sample is scanned to obtain a sample tomography image, and meanwhile the scanned engineering granular material is labeled; the engineering granular material comprises graded broken stone, cobblestones, building waste crushed materials, artificially synthesized stone and an RAP recycled mixture. Constructing a three-dimensional digital aggregate database by using a sample tomography image and the labeled engineering granular material; and evaluating the three-dimensional aggregate database so as to determine whether the generated three-dimensional aggregate da