| 摘要 |
PURPOSE: A floor concrete structure slab for preventing vibration and noise occurred through a hole is provided to reduce vibration, and to absorb impact by injecting a shock-absorbing material into a hole of concrete. CONSTITUTION: A construction method of a floor concrete structure slab for preventing vibration and noise occurred through a hole is as follows. Before a floor concrete slab(12) is placed, sand holes(11) are formed in concrete. Concrete is placed in the floor concrete slab in which the sand holes are formed. The sand holes are filled with sand, and are covered by cement, panels, sound-absorbing materials, or sound insulating materials(10). |
