发明名称 CRACK-INDUCING JOINT, SCREW FOR FIXING THE SAME, AND CRACK-INDUCING WATERPROOF STRUCTURE AND CRACK-INDUCING WATERPROOFING METHOD FOR CONCRETE STRUCTURE USING THEM
摘要 <P>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. Ž<P>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. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010001644(A) 申请公布日期 2010.01.07
申请号 JP20080161005 申请日期 2008.06.19
申请人 IZAKI KOGYO:KK 发明人 IZAKI TSUGIO
分类号 E04B1/62 主分类号 E04B1/62
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