BELT TYPE SHOTCRETE MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a belt type shotcrete machine capable of enhancing strength of concrete solidified by being sprayed on an object face and further making low dust. SOLUTION: The belt type shotcrete machine 10 is provided with a belt type sprayer body 10 projecting not yet solidified concrete to the object face by centrifugal force of rotation of a belt 18 and a shotcrete pipe 36 forcedly pumping the concrete to the sprayer body. An accelerator of the concrete is fed together with compressed air, an accelerator feed pipe has a smaller diameter than the shotcrete pipe 36 penetrates the outer wall of the shotcrete pipe 36 to be connected so that it is projected in only a prescribed depth to the inside of the pipe, and is connected with an angle of 40 degrees to the center axis of the shotcrete pipe 36 in the upstream side of the connection part. COPYRIGHT: (C)2003,JPO