METHOD FOR MANUFACTURING CONCRETE BLOCK AND MANUFACTURING DEVICE THEREFOR

摘要

PROBLEM TO BE SOLVED: To mold a block with a split face without using a special machine and without producing defectives. SOLUTION: When a concrete block 1 is to be molded by using molding forms 11a, 11b, a constricted part whose section area is smaller than the rest is formed in a part of the concrete block 1. Then the concrete block 1 having the split face on the surface is molded by spliting the surface at the constricted part.