| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a concrete panel with higher bending strength and to provide a technology for manufacturing the same. <P>SOLUTION: In the parallelepiped concrete panel, a net body 3 is arranged at the nearest inner side of the rear surface of a panel body 1. The concrete constituting the panel body is extremely stiff consistency concrete. The net body 3 is made of materials having rust preventive property and tensile strength property in a net shape. The method of manufacturing the concrete panel includes: a net body arranging process for arranging the net body 3 on the bottom of the molding die 10; a concrete casting process for casting concrete before hardening in a molding die 10; a clamping process for clamping the casted concrete before hardening; and a removing process for removing the product from the molding die after the concrete is clamped. Since the net body 3 is at the nearest inner side of the rear surface of the concrete panel, the net body resists against the tensile stress generated on the rear surface when a bending action is exerted due to the load from the upper surface side, and thus the concrete panel with higher bending strength is obtained. The method is effective in improving the strength of the concrete panel. <P>COPYRIGHT: (C)2013,JPO&INPIT |
