The lightweight CMU meets high compressive strength requirements, under normal load and can be used at all times. High compression allows higher design intensities than normal weight units. Lightweight concrete blocks can withstand fire and provide better thermal efficiency than conventional blocks of the same configuration, which are therefore often used to construct fire retardant walls. In addition, the use of lightweight CMUs also helps to save construction costs by increasing productivity and reducing labor costs.
 
In terms of sound, there are two different measurements for measuring the sound quality of the wall: STC and NRC. STC (sound transmission level) measures the ability of walls to prevent sound from passing. In general, the heavier the wall, the higher the STC value. Therefore, the STC index of the lightweight CMU wall is usually lower than the normal wall weight. However, this indicator at the CMU is slightly larger than 45 and much higher than the lightweight frame structures.
 
NRC (noise reduction factor) measures sound absorption. In general, lightweight CMU walls have NRC values ​​twice as high as conventional CMU walls.
In addition, lightweight CMU walls contribute to the sustainability of buildings. Lightweight concrete solutions including lightweight concrete, precast concrete can improve energy efficiency, reduce material weight by reducing load, Good quality of service. The weight of lightweight concrete blocks is also recyclable, sustainability may outstrip the use of other recycled materials.
 
 
 
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