WORK METHOD FOR FILLING GROUT INTO INNER CABLE OF POST TENSION SYSTEM PC STRUCTURE

摘要

A work method for filling grout into the inner cable of a post tension system PC structure, comprising the steps of filling grout (G) into an overall length test body formed of a cable of a transparent material having a sheath of three-dimensionally disposed structure identical to an inner cable (2') at a construction site assembled on the outside of the construction site or a partial test body formed of the length portion of the cable where air accumulation is liable to occur, performing a test under multiple test conditions, selecting the best grout filling conditions from the test results, and applying the conditions to the grout filling work at the construction site, whereby since such problems with the conventional work method for filling grout into the inner cable of the post tension system PC structure that the sheath (3') having the inner cable disposed therein is closed in concrete at site and it is difficult to check whether or not grout is filled without air accumulation can be solved, a post tension system PC structure having not air accumulation (V) in the sheath and not causing the corrosion and breakage of PC steel material used for the cable can be provided.