Assembly type profiled steel sheet combined light foamed cement wallboard

The utility model discloses a novel building material, and particularly relates to an assembled profiled steel sheet combined light foamed cement wallboard. The connecting structure comprises a profiled steel sheet, a concave connecting piece, a convex connecting piece, a cement fiberboard, cement mortar and a U-shaped connecting piece, the cross section of the profiled steel sheet is of a trapezoid structure, the side face of the concave connecting piece is fixedly connected with one side of the profiled steel sheet through a rivet, and the side face of the convex connecting piece is fixedlyconnected with the other side of the profiled steel sheet through a rivet. Cement fiberboards are arranged on the two side faces of a plate-shaped structure formed by the concave connecting pieces, the profiled steel plates and the convex connecting pieces respectively and fixed through self-tapping screws, the positions between the profiled steel plates and the cement fiberboards are filled withcement mortar, and the U-s