在隧道頂部測試防火板的指標(biāo)是其耐火性?？紤]到隧道的安全性，所選隧道的防火裝飾板必須是質(zhì)量好板。無機預(yù)涂板用于制造防火板基材。該板具有不錯的防火性能，硅酸鈣板的熔點可達到A1級不燃性，并且其抗裂性再次提高了很多效果。作為隧道防火板，該材料必須屬于無機預(yù)涂板作為主要材料。

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.
              

防火板材料實際上分為兩種，一種是無機防火板材料，另一種是有機防火板材料。有機材料具有更好的隔熱性能，價格相對便宜，但其耐火性并不理想，其燃燒性能甚至無法達到B2防火等級。二是無機材料(如巖棉板和泡沫玻璃)的耐火性可達到A1級。

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.

隧道防火裝飾板是國家認可的綠色環(huán)保建材。根據(jù)不同的需求可以配備不同的顏色。該板具有耐酸，堿，耐腐蝕，抗菌，耐候，耐濕，防火等高質(zhì)量特性。該板可重復(fù)使用，維護成本低。

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.