Aluminum foamed lightweight composite board is a by-product developed by Zhongshi Qiangye. It is mainly used to prevent and control high-intensity noise pollution inside and outside large buildings and industrial equipment.
Material: The outer layer is made of metal punching plate, and the inner core is a low-density sintered inorganic particle filler and a aluminum foam support. The filler is light in weight, and its weight is only 15-25% of the same volume of aluminum; it is a non-flammable inorganic substance , In the open flame to 700-800 degrees Celsius, it will not burn, will not change shape, have no peculiar smell, environmental protection and no pollution; sound absorption.
Sound absorption and noise reduction performance: According to the standard inspection of sound absorption coefficient and acoustic impedance rate measurement by standing wave tube method, the noise reduction coefficient is 0.5. Under the condition of leaving a cavity of 5cm, when the noise frequency range is between 500-630hz, the sound absorption coefficient Up to 0.88, used to make traffic sound barriers.
Aluminum foamed lightweight composite board has the characteristics of light weight (72kg/ ), no water absorption, and good sound absorption performance. Compared with most sound barrier materials currently under construction in China, it has significant performance advantages. For example, using a dense metal plate or a plexiglass plate, because the material itself does not have sound absorption properties, it can only block sound, but cannot eliminate noise. There are also sound-absorbing panels filled with centrifugal glass wool, which can improve the noise reduction coefficient. However, glass wool is brittle and easy to fold, easy to absorb water, and has weak weathering resistance. It is not suitable for use outdoors and in places with a lot of water vapor. It is harmful to human body and will cause secondary pollution to the environment. Zhongshi Qiangye’s lightweight composite board avoids the congenital defects of the above materials, and is a high-efficiency, durable, and environmentally friendly sound barrier special board in domestic urban construction.
Post time: May-09-2022
