GROUT FILLING TYPE REINFORCING JOINT SLEEVE

摘要

PURPOSE: To use a conventional steel pipe and to make it possible to ensure sufficient adhesion without increasing cost. CONSTITUTION: Two reinforcing bars to be connected are inserted in a grout filling type reinforcing joint, and it is filled with grout to have a sleeve 11 to which two reinforcing bars are connected. The sleeve 11 is formed of cylindrical steel materials, and roughness of surface Rmax showed with the maximum height of the outside 12 thereof reaches more than 25μm through blast treatment.