and a method for inducing crack waterproof construction of concrete structures crack inducing joint, using the same

摘要

PROBLEM TO BE SOLVED: To provide a crack-inducing joint which can be easily and rapidly fixed to a form and removed therefrom, a joint fixing screw, a crack-inducing waterproof structure, and a crack-inducing waterproofing method.;SOLUTION: The crack-inducing joint has its arbitrary cross-sectional shape composed of a flat portion and a tapered portion which is tapered toward the other side of the flat portion; a flat surface composed of the flat portion is provided with a screwing groove which is opened on the side of the flat surface, the back width of which is greater than an opening width, and the arbitrary cross section of which is formed in a T-shape; a leading end of the tapered portion is provided with an opening groove which makes the upper and lower end surfaces of a crack-inducing joint body communicate with each other; an opening of the opening groove is covered with a sheet which does not allow the percolation of unhardened concrete; and a covering layer covers the upper end surface, lower end surface and flat surface of the crack-inducing joint body, and a surface except the opening groove.;COPYRIGHT: (C)2010,JPO&INPIT