Concrete impermeability test piece splitting device

The utility model relates to a test piece splitting device for a concrete impermeability test. According to the technical scheme, the splitting device for the concrete impermeability test piece comprises an upper supporting plate, a round hole, an upper pressure bearing plate, a pressure bearing column, a lower pressure bearing plate, a connecting rod, a convex edge and a transverse rib, wherein the two sides of the upper supporting plate are smooth surfaces, one side of the upper bearing plate and one side of the lower bearing plate are smooth, and the other side of the upper bearing plate and the other side of the lower bearing plate are provided with a circle of protruding edge; one side of the upper supporting plate is attached to the smooth side of the upper bearing plate 3, and the side, provided with the protruding edge, of the upper bearing plate is opposite to the side, provided with the protruding edge, of the lower bearing plate. The upper supporting plate is connected with the lower bearing plate