WATER STOP METHOD FOR CONCRETE PLACING JOINT IN DIRECT CONCRETE PLACING METHOD

摘要

PROBLEM TO BE SOLVED: To prevent a water leakage from a concrete placing joint in a direct concrete placing method and stop water reliably.;SOLUTION: A projection 10 is protruded from an end form 9 at the prescribed position of the concrete placing joint 8 to form an injection groove 11 of a water stop material 21, an injection pipe 12 is arranged toward the injection groove 11 through the end form 9 and the projection 10, and a rod 20 is inserted into the injection pipe 12. When concrete 7 is placed, the tip section 9c of the injection pipe 12 is blocked by the rod 20. When the water stop material 21 is injected, the rod 20 is retreated to form an injection hole 14 at the tip section 9c of the injection pipe 12, and the water stop material 21 is injected into the injection groove 11.;COPYRIGHT: (C)2001,JPO