| 摘要 |
PROBLEM TO BE SOLVED: To favorably maintain water stop at a cylindrical joint 1 for a resin concrete 3, and water stop at a connection part between concrete pipes 3 and 3, and improve durability of the connection part. SOLUTION: In this joint for a resin concrete pipe, a weld connection part 2 parallel to a center line c of the cylindrical joint 1 of stainless steel is pressed on an inside and an outside surfaces 2' and 2". The inside and outside surfaces 2' and 2" of the connection part 2 are formed level to an inside and an outside surfaces 1' and 1" of the cylindrical joint 1, and a base part 1a of the joint 1 is engaged with the resin concrete pipe 3. A tip part 1b of the joint 1 protruded from the pipe 3 is slightly expanded, and an end edge surface 1c of a tip part 1b is formed to be parallel to or larger than an inclination angleαof a rear end guide surface 4' of a water stop ring 4 engaged with a rear end part small diameter step 3" in the resin concrete pipe 3 connected. COPYRIGHT: (C)2005,JPO&NCIPI
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