Mold, for concrete test piece, has tearing band with retaining portion extending above lower edge of wall and fixed on outer side of wall, where portion is maintained crimping at periphery of base with edge of wall

摘要

The mold (2) has a metal base (4) fixed to a lower edge of a cylindrical wall (3) on an edge of the wall, where the wall is made of a rupturable material. A tearing band (5) glued on an inner side of the wall has a retaining portion (7) extending above the lower edge and fixed on an outer side of the wall, where the portion is maintained crimping at a periphery of the base with the edge of the wall.