HOLDER FOR CARTRIDGE TYPE EXPANSIVE BREAKING MATERIAL TO CUT EXTRA-BANKING CONCRETE OF CAST-IN-PLACE CONCRETE PILE

摘要

PROBLEM TO BE SOLVED: To keep a breaking material in a normal posture, by bending the end side of a support bar so as to form a nearly low rectangular loop and forming the holding part for an expansive breaking material and providing a space to insert the main reinforcement between the holding part and a vertical bar. ;SOLUTION: A nearly gate-shaped vertical bar 1 is formed. The end side is bent to form a nearly low rectangular loop and a holder 3 is formed at the end thereof to make a support bar 2. The support bar 2 is fixed to the vertical bar 1 at right angles to form a holder for a cartridge type expansive breaking material provided with an insertion space of main reinforcements enveloping a plastic pipe. On executing this device, the cartridge type expansive breaking material is inserted in the holder 3 of the holding tool in the posture that the longer diameter of the elliptic shape is laterally positioned in the horizontal direction.;COPYRIGHT: (C)1997,JPO