Some common knowledge of sound insulation barrier


Published:

2022-08-08

The sound insulation barrier has a strong sound insulation function, which is also the main function of the sound insulation barrier Its sound insulation effect (laboratory test data) STC30 can better meet the noise reduction requirements of noise control in traffic engineering

The sound insulation barrier has a strong sound insulation function, which is also the main function of the sound insulation barrier. Its sound insulation effect (laboratory test data) STC30 can better meet the noise reduction requirements of noise control in traffic engineering.

The sound-absorbing material used in the sound insulation barrier is the most advanced high-efficiency sound-absorbing centrifugal glass wool board in the world today. The protective layer wrapped by the cotton board plays the role of defense and dust prevention, which can effectively guarantee the long-term sound absorption effect. The average sound absorption coefficient (laboratory test data) NRC of the sound insulation barrier is greater than 0.95, which effectively reduces the diffusion of noise to the outside world. Therefore, the sound insulation barrier also has a strong sound absorption effect.

In addition to strong sound insulation and sound absorption performance, the sound insulation barrier is also beautiful in appearance. The sound insulation barrier can choose the ideal color according to the needs, and coordinate with the surrounding landscape; the sound insulation part adopts a large area of ​​transparent materials, which is simple and clear; the overall structure has smooth lines, which is suitable for the aesthetic requirements of urban traffic.

The sound insulation barrier is used for sound insulation and noise reduction of transportation and municipal facilities such as expressways, elevated compound roads, and urban light rail subways, so as to control the impact of traffic noise on nearby urban areas. Residents on both sides of roads and railways are often disturbed by the sound of sirens, especially at night, and it can be said that no one can sleep well. Noise barriers keep us close to the traffic and away from the noise.

The sound insulation barrier is used for home decoration. Use soundproof materials (soundproof windows, soundproof doors, soundproof cotton) in home decoration to make the home more comfortable, the neighbors more harmonious, and not be disturbed by the sound of the TV next door. In the past, the sound insulation effect of the house was poor, and the movement of the neighbors was loud and clear, especially for families with children. Crying at night makes people sleepless. The sound barrier makes us more harmonious.

The factory uses sound insulation barriers. The noise of the machines makes workers anxious, and working for a long time can also affect their hearing. It acts on the central nervous system of the brain through the auditory organs, thereby affecting all organs of the body. Therefore, noise not only damages people's hearing, but also harms other systems of the human body. Noise barriers reduce noise and keep employees healthy.

The general principles for the selection of sound insulation barrier materials are good noise reduction performance, safe and reliable structure, economical material price, low installation cost, durability, long service life, harmonious landscape, and elegant appearance. Details are as follows:

(1) Large sound insulation: the average sound insulation should not be less than 35dB;

(2) High sound absorption coefficient: the average sound absorption coefficient should not be less than 0.84;

(3) Weather resistance: The product should be resistant to water, heat, and ultraviolet rays, and will not reduce performance or cause abnormal quality due to changes in rainwater temperature. The product is made of aluminum alloy coil, galvanized coil, glass wool and H-shaped steel column, and its surface is galvanized to prevent external corrosion for more than 15 years.

(4) Beautiful: You can choose a variety of colors and shapes to combine, and coordinate with the surrounding environment to form a beautiful landscape.

(5) Economical: Prefabricated construction can improve work efficiency, shorten construction time, and save construction and labor costs. (6) Convenience: Installed in parallel with other products, easy to maintain and update.

(7) Lightweight: The sound-absorbing panel series products have the characteristics of light weight, which can reduce the load bearing of elevated light rail and elevated road, and reduce the structural cost.

(8) Fire prevention: Ultra-fine glass wool is used, which has a high melting point and is non-combustible, which fully meets the requirements of environmental protection and fire prevention regulations.

(9) High strength: Considering the different climatic conditions in various regions of our country, it is necessary to fully test the virtual wind load in the structural design. Increased strength by pressing grooves on the production line.

(10) Waterproof and dustproof: Waterproof and dustproof should be fully considered in material design, and its sound absorption performance will not be affected in the environment of flying dust or rain. The structure is equipped with dust and drainage measures to avoid water accumulation in the components. The sound absorption performance of the micro-perforated resonator is not affected in the rainy environment, and it is especially effective for low-frequency noise reduction.

(11) Durability: The product design fully considers the wind load of the road, the impact safety of traffic vehicles and the open-air anticorrosion of all-weather holidays. The product is made of aluminum alloy coil, galvanized coil, glass wool and galvanized surface of H-shaped steel column. During the warranty period, there will be no corrosion, no deformation, and no reduction in sound-absorbing and sound-insulating effects.

 

key word:

Sound barrier