MOLD FOR FORMING PC PRODUCT AND MANUFACTURE OF PC PRODUCT USING THE SAME

PURPOSE:To form an irregularity part on the surface of a PC product even when the product is released from a mold along the molding face of the mold. CONSTITUTION:An irregularity member 30 is installed at each corner of the outside which becomes the molding face 14a of an inner mold 14 to be able to move outward. The irregularity member 30 is placed in a recesses part 32 formed at the corner of the inner mold 14 so that emerging pieces 34 can slide toward a space 18. These emerging pieces 34, which are formed so that a number of irregularity parts are arranged vertically and continuously to be integrated into a comb shape, are installed in a manner that the irregularity parts can enter into the space 18. The emerging piece 34 is fixed in an emerging state with a positioning bolt 44, and the space 18 between the inner mold 14 and an outer mold 16 is filled with concrete 46. When the concrete 46 has set, the emerging piece 34 is placed in a recessed part 32 by handling the positioning bolt 34. With the emerging piece 34 placed, the inner mold 14 and the outer mold 16 are raised for demolding, forming a PC mold for columns.