METHOD FOR PRODUCING PRECAST CONCRETE FLOOR SLAB AND PRECAST CONCRETE FLOOR SLAB

摘要

PROBLEM TO BE SOLVED: To solve a conventional problem, that is, to provide a precast concrete floor slab and a method for producing the same such that an upper side of the precast concrete floor slab is more dense than a lower side thereof without forming a construction joint (that is, a water path) between the precast concrete floor slab and a guard channel or the like.;SOLUTION: A method for producing a precast concrete floor slab of the present invention, includes: a formwork assembling step; a concrete placing step; and a concrete curing step. In the formwork assembling step, a formwork is assembled such that up and down orientations are reversed, and in the concrete placing step, a concrete is placed in the formwork which is in a state where up and down orientations thereof are reversed. In the concrete curing step, the concrete is cured while maintaining the state where up and down orientations are reversed so as to allow the concrete to harden. In the concrete placing step, the concrete is placed such that a floor slab and a guard channel (or a wall parapet) are unified.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT