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What is the sound barrier
- Sound barrier is an environmentally sound noise reduction productss
Highway sound barrier is generally placed in the tender documents where technical specifications
- Ministry of Transport of the People's Republic of China May 11, 2009 Documents issued by the People's Republic of China on May 11, 2009: Traffic Bureau of Xinjiang Autonomous Region, Municipality, Xinjiang Production and Construction Corps (Bureau, Committee), Tianjin Municipal Highway Administration Bureau: Construction Bidding Management specification prequalification documents ...s
The difference between aluminum fiber sound absorbing plate and aluminum alloy sound barrier
- First, aluminum fiber sound absorption board
Aluminum fiber sound absorption board, is made of aluminum mesh on both sides of the aluminum fiber felt and aluminum foil sandwiched by the rolling of a metal-type sound-absorbing material. Aluminum fiber sound absorption board, is a sound-absorbing material, belonging to the sound barrier built-in sound absorption material. Aluminum fiber sound absorption board has the following characteristics:
● ultra-thin light: aluminum fiber sound absorber thickness is generally 0.8 ~ 2.0mm or so, the surface density of 1.4 ~ 3.2kg / m2. Due to the small volume of material, transportation and storage is very convenient.
● 1.35mm thick noise reduction coefficient NRC 0.7,1.8mm thick noise reduction coefficient NRC is 0.9
● decorative: the board can be sprayed with the required color, rich color and beautiful, set the decorative effect and sound effects in one.
● easy processing and construction: sheet machinability is good, easy drilling, bending and cutting. Construction and installation process will not produce fiber dust scattered pollution of the environment and affect the health of workers, construction is simple.
● Material plate size: aluminum fiber board is the use of its plastic through the roll forming, large plate. In addition to sheet metal, but also processed into a variety of shapes of sound absorbers.
● recyclable use: made of pure aluminum metal, the exchange will not form waste waste on the environment caused by pollution, so it is itself an environmentally friendly products.s
The difference between the railing mask and the sound barrier mask
- The shutter mold plays a beautifying role in covering the steel in the bridge.s
High iron sound barrier column is made of I-shaped or H-shaped steel to do.
- The price is not the same, H-shaped steel prices cheaper than the I-beam.s
Sound barrier mold standard size, what material?
- Sound barrier Mold size: 1960 * 500 * 140cm 3960 * 500 * 140cm
Sound barrier mold with steel, welded steel, sound barrier mold and rubber pad with the use ofs
How many meters to set the sound barrier
- This is not to see how many Mha, is to look at the size of high-speed rail noise and the size of the harm caused to determine whether the sound barrier.s
What is the noise reduction barrier of industrial noise What are the advantages?
- However, due to lack of understanding of the means of noise control, "sound absorption" and "sound insulation" as completes
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