Tunnel fireproof plate and production process thereof

[0036] Example 1

[0037] The weight percentage of solid filler is:

[0038]

[0039] The production process includes the following steps: a. The weight percentage of each component of the solid filler is: 15% diatomaceous earth, 30% kaolin, 10% pozzolan, 5% aluminum silicate, 20% wollastonite, and modified external 15% of the filler and 5% of the reinforcing fiber. The total weight percentage of the above filler is 100%. After the above solid filler is prepared, fully stir it for 10-15 minutes for standby; b. Make liquid slurry, liquid slurry and solid The weight percentage of the filler is 20:80, the liquid slurry is prepared by using magnesium chloride: magnesium oxide (molar ratio) = 1:1.5~1.0 to prepare a certain consistency of magnesium oxychloride slurry, and the solid filler is added to the liquid slurry and stirred 5-10 minutes, then add the solid filler into it and stir evenly; c. Put the above mixture into three drums for extrusion, and the extrusion pressure is 2-3kg / cm

[0040] Example 2

[0041] The weight percentage of solid filler is:

[0042]

[0043] After mixing, forming, curing and cutting the formulas of the above two examples, see Table 2

[0044] Table 2 Performance Comparison of Examples

[0045] .