PRECAST CONCRETE SLAB

摘要

PROBLEM TO BE SOLVED: To provide a precast concrete slab that constitutes a part of a half-precast synthetic slab and is provided with a void between the precast concrete slab and a cast-in-place concrete layer of a remaining part of the half-precast synthetic slab, the precast concrete slab ensuring fire-resisting performance and preventing a foreign matter from being left in the void.SOLUTION: A recess 15 for a void is formed in a precast concrete slab 10 for a half-precast synthetic slab 1. The recess 15 for a void opens in a lamination surface 10a of a cast-in-place concrete layer 30. A net-like member 30 covers an opening on the lamination surface 10a of the recess 15 for a void. The net-like member 30 comprises preferably of a metallic lath net.SELECTED DRAWING: Figure 3