| 摘要 |
Between the stone plate and the concrete plate a plastics foil is arranged, locating on the surfaces of the plate. For fixture of the stone plate (1) to the concrete plate (2), in the stone and concrete plates are arranged screw anchors (12) vertically to the dividing surface, which are fixed in the stone plate in a hole (8) with back cut via a head and a bracing part (13) supporting on it. The screw anchors are so held in the concrete plate that a socket (4) cast with the concrete plate, which encloses the shaft (11) of the screw anchor, permits a compensation movement in a radial direction. The socket is formed as a concreted-in bolt which has a longitudinal bore with a thread-free section (20) to which is connected a section with an inner thread (10). |
