1, the thickness of the wall. It should be easy to understand that the thicker the wall, the better the sound insulation effect. The sound insulation of 12 wall is different from that of 24 wall.
2. Types of wall masonry. The sound insulation effect of solid brick is worse than that of hollow brick.
3. Density of masonry. The higher the brick firing density, the better the sound insulation effect.
4, the size of the door and window hole. The bigger the doors and windows open, the worse the sound insulation effect, which of course depends on the sound insulation effect of doors and windows.
5. It is also related to the thickness and density of the floor. Not to mention the thickness, the cast-in-place slab has high density and good sound insulation, but the sound insulation effect of precast slab is worse.
6. There is a * * vibration frequency in the three laws of sound insulation. The above factors 1, 2, 3 and 5 all affect the vibration frequency of * *, thus affecting the sound level. The other two are the law of mass and coincidence effect.
Finally, if the environmental noise affects the quality of life, it is recommended to install indoor sound insulation boards and sound insulation glass.