PLACING FORM

PURPOSE:To improve strength, corrosion resistance and durability by burying a reinforcing member consisting of an aramid roving to placing forms. CONSTITUTION:A plurality of recessed strips 2 and projecting strips 3 extended in the longitudinal direction of long plate-shaped placing forms 1 composed of a cement extrusion molding material are formed alternately to a surface brought into contact with placing concrete in the forms 1. Rope-shaped aramid rovings 4, in which irregularities are formed to surfaces, are buried in the forms 1. Meshy aramid rovings may also be buried in place of the rope-shaped aramid rovings 4. Accordingly, even when an extrusion molded plate is treated by an autoclave when the placing forms are manufactured, the extrusion molded plate is not deteriorated, thus easily producing the placing forms having high strength.