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Reasons for hardening the endurance board

by:UNQ     2021-03-11
After the endurance board is formed, it will undergo secondary treatment. The main process is hardening treatment. The main reason for the hardening treatment of the endurance board is that the surface hardness of the PC endurance board is not enough, which is easy to scratch and scratch, making it difficult The application is greatly restricted. Since the surface of the endurance board has been properly hardened, the board can reach 2H through surface hardening. However, it should be noted that not all quality PC endurance boards can be hardened. It can be seen that hardened endurance boards have stricter requirements on the board. One of the most important prerequisites is that the surface of the endurance board needs to be free of die lines and water ripples before it can be hardened. One major disadvantage of hardened endurance board is that the surface hardening treatment of the board will affect the flexibility of the board. PC endurance board will become very brittle, and the endurance board is prone to brittle cracks during processing or installation. At the same time, the plate cannot be bent, and can only be laid flat during placement. Therefore, although the hardened endurance board meets the needs of some customers, the overall application in the market is still very small. Just like the endurance board used as a sound barrier, it does not need to be hardened. It not only meets the sound insulation requirements of the sound barrier project, but also meets the pursuit of landscape effects and visual permeability. In addition, the construction of the sound barrier project should also consider the bearing capacity of the viaduct. The lower the bulk density of the sound barrier, the better. The endurance board is light, so it is naturally the preferred choice for transparent sound insulation board. The construction of the project is even more inseparable from the safety of the barrier. If the transparent sound insulation board made of glass is used, it will be easily broken after being hit by the vehicle involved in the accident. Heavy and sharp glass fragments falling from the viaduct will pose a huge safety threat to pedestrians under the bridge. ; If a light-weight sound insulation endurance board is selected, its safety factor is greatly improved.
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