| 摘要 |
PURPOSE: A material buried in a slab for absorbing noise between floors in an apartment house is concurrently constructed with a slab in order to improve the structure of a slab, a residential environment, and constructability. CONSTITUTION: A material buried in a slab for absorbing noise between floors in an apartment house comprises a noise guiding pipe (100) and a sound absorbing material pipe (200). The outer circumference of the noise guiding pipe is formed with a plurality of uneven grooves (110). A plurality of protrusions (120) is protruding from inner circumference of the noise guiding pipe. The sound absorbing material pipe is inserted into the noise guiding pipe and is formed with a hollow space (210). |
