REFILLING METHOD OF PC GROUT AND MIXING-KNEADING METHOD OF PC GROUT

摘要

PROBLEM TO BE SOLVED: To provide a refilling method of PC grout and a mixing-kneading method of PC grout capable of preventing a refilling failure of PC grout to be refilled in a sheath pipe arranged in the inside of an existing PC structure and extending a serviceable life.;SOLUTION: A refilling method of PC grout 5 to refill the PC grout 5 into a sheath pipe 2 arranged in the inside of a main girder 71 of a bridge 7 comprises: a primary mixing-kneading process to mix-knead the powdered PC grout 5 with primary water; a secondary mixing-kneading process to add secondary water obtained by removing the primary water from a volume of total mixing water to the mix-kneaded PC grout 5 in the primary mixing-kneading process and to mix-knead them; and a refilling process to refill the mix-kneaded PC grout 5 in the secondary mixing-kneading process to the sheath pipe 2 arranged in the inside of the main girder 71 of the bridge 7.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2018,JPO&INPIT