Based on computerized tomography two-phase ray tracing technique
quality of concrete member has been tested. Professional test equipment is used to attain projection data without damage test member interior configuration.By using selected mathematic model and image reconstruction techniques
the solution for inverse problem is obtained. It also forms 2-dimension and 3-dimension images to show the inner performance characteristics. The full information of the tested section of the concrete members can be supplied; and the detail flaws can be detected effectively and accurately. Computerized tomography technique is structure disease test mainstream; the method’s foreground is wide due to its cheapness