在隧道顶部测试防火板的指标是其耐火性。考虑到隧道的安全性，所选隧道的防火装饰板必须是质量好板。无机预涂板用于制造防火板基材。该板具有不错的防火性能，硅酸钙板的熔点可达到A1级不燃性，并且其抗裂性再次提高了很多效果。作为隧道防火板，该材料必须属于无机预涂板作为主要材料。

Fire resistance is the index to test the fire board on the top of the tunnel. Considering the safety of the tunnel, the fire-proof decorative board of the selected tunnel must be of good quality. Inorganic precoated board is used to make the base material of fireproof board. The board has good fire resistance, the melting point of calcium silicate board can reach class A1 non combustible, and its crack resistance is improved again. As a tunnel fire board, the material must belong to inorganic precoated board as the main material.
              

防火板材料实际上分为两种，一种是无机防火板材料，另一种是有机防火板材料。有机材料具有更好的隔热性能，价格相对便宜，但其耐火性并不理想，其燃烧性能甚至无法达到B2防火等级。二是无机材料(如岩棉板和泡沫玻璃)的耐火性可达到A1级。

In fact, there are two kinds of fireproof board materials, one is inorganic fireproof board material, the other is organic fireproof board material. Organic materials have better thermal insulation performance and relatively cheap price, but their fire resistance is not ideal, and their combustion performance can not even reach the B2 fire rating. Two, the fire resistance of inorganic materials, such as rock wool board and foam glass, can reach A1 grade.

隧道防火装饰板是国家认可的绿色环保建材。根据不同的需求可以配备不同的颜色。该板具有耐酸，碱，耐腐蚀，抗菌，耐候，耐湿，防火等高质量特性。该板可重复使用，维护成本低。

Tunnel fireproof decorative board is a green environmental protection building material recognized by the state. According to different needs can be equipped with different colors. The board has acid, alkali, corrosion resistance, antibacterial, weather resistance, moisture resistance, fire and other high quality characteristics. The board can be reused with low maintenance cost.