CRUSHING METHOD AND CRUSHER FOR CONCRETE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a crushing method and a crusher for concrete structures which can prevent scattering of dust effectively with relatively small amounts of water during crushing target parts of a concrete structure. SOLUTION: Crushing target parts of a concrete structure W are crushed with a pair of opening-and-closing crushing arms 33 and 33 arranged in a crusher 3. A spray nozzle 35 spraying water toward the target parts from the side of the cutting edge 331 of the crushing arm cutting into the target parts is disposed. Water spraying from the spray nozzle 35 is started when the crushing arms 33 and 33 are closed to start crushing of target parts, and the water spraying from the spray nozzle 35 is stopped when the crushing arms 33 and 33 are opened. COPYRIGHT: (C)2009,JPO&INPIT