Double-layer containment concrete aging state evaluation method

The invention provides a double-layer containment concrete aging state evaluation method, and relates to the technical field of nuclear power. The method comprises the following steps: respectively arranging a damage detection concrete test block and a special strength measurement concrete test block on an inner-layer containment dome and an outer-layer containment dome of a double-layer containment; obtaining a damage detection result by utilizing the damage detection concrete test block; obtaining a special strength measurement curve by using a special strength measurement concrete test block; carrying out sampling detection on the surface of the inner-layer containment and the surface of the outer-layer containment to obtain a first strength measurement detection result; according to the intensity measurement special curve, calibrating the first intensity measurement detection result to obtain a second intensity measurement detection result; and evaluating the concrete aging state of the double-layer conta