Production method of joint filler and joint material with concrete blocks for concrete block

摘要

PURPOSE:To prevent the leakage of water by a method in which the upper and lower sides of at least joint face-forming frame in the base of joint part are shaped into a sloped form in such a way that the tip side is positioned above the basal end side to discharge the air bubbles in the concrete. CONSTITUTION:The body 2a of a joint part 2 is inserted into and fixed over all circumference in the joint part-supporting groove 3a of a front and back joint faces-forming frame 3 constituting a formwork. When concrete is placed into the formwork, air bubbles in the concrete rise along the base 2b from the basal end 2d to the tip 2c of the joint part base 2b and are discharged outside.