Horizontal joint plugging cushion layer and prefabricated panel horizontal joint plugging test device

The embodiment of the utility model discloses a horizontal joint plugging cushion layer and a prefabricated wallboard horizontal joint plugging test device, and relates to the technical field of building construction.The horizontal joint plugging cushion layer comprises a rectangular plugging cushion layer body, and the plugging cushion layer body comprises a first elastic material layer, a metal sheet layer and a second elastic material layer which are sequentially connected in a stacked mode; a hole is formed in the middle of the plugging cushion layer body, so that the plugging cushion layer body is in a rectangular frame shape. The plugging cushion layer body is arranged to serve as a plugging and sealing component, repeated use can be achieved, the metal sheet layer is used for making up for compression deformation of the elastic material, the rigidity of the frame-shaped cushion layer is guaranteed, excessive deformation and bending of the cushion layer in an experiment are prevented, the elastic materi