HALF PRECAST CONCRETE SLAB CAPABLE OF TOPPING CONCRETE REDUCTION AND IMPROVEMENT OF ATTACHMENT EFFICIENCY

摘要

PURPOSE: A half precast concrete slab for reducing topping concrete having improved attaching efficiency is provided to improve the structural stability of the slab by reducing the weight of the slab. CONSTITUTION: A half precast concrete slab for reducing topping concrete having improved attaching efficiency comprises flat plate(11), ribs(12), hollow walls(13), and keyways(14). The ribs are arranged on the top surface of the flat plate at uniform intervals. The hollow walls are formed between the ribs in the parallel or vertical direction of the arranged ribs. The keyways are formed in each rib.