Sound Transmission Through Concrete Walls

So how does sound travel through concrete.

Sound transmission through concrete walls.

Concrete walls are designed to reflect noise towards the source and absorb some of the energy from the sound wave. Sound attenuation in building elements like massive concrete walls or floors sponsored links the sound transmission through a massive wall or floor depends primarily on the mass of the construction. Concrete masonry offers excellent noise control in two ways. Reducing sound transmission through walls walls rank among the top three structures commonly cited as sources of sound transmission.

Concrete masonry walls are often used for their ability to isolate and dissipate noise. And lastly the object absorbs part of the sound wave. When it comes to concrete and soundproofing you should always focus on coating the walls with a layer of noise reduction materials first. First it effectively blocks airborne sound transmission over a wide range of frequencies.

Tests of sound transmission loss were made on 8 in. These walls are often referred to as the party walls. Most of the sound energy isn t traveling through the wall which is why it provides such an effective noise barrier. When absorption occurs the sound wave is converted into heat energy.

Second concrete masonry effectively absorbs noise thereby diminishing noise intensity. Secondly a certain amount of the sound wave is transmitted. Many building codes require minimum sound transmission loss values expressed as sound transmission class stc of 45 to 50. 152 and 203 mm thick cast concrete walls.