The invention provides internal and external wall fireproof insulating plates, and particularly relates to a vitrified
micro bubble composite rock
wool fireproof insulating plate and a manufacturing method thereof. In the vitrified
micro bubble composite rock
wool fireproof insulating plate, a rock
wool plate is used as a base layer; a vitrified
micro bubble layer, an alkaline-resistance mesh cloth layer, a vitrified micro bubble
surface layer and a vitrified micro bubble bottom layer are solidified on the outer surface of the base layer; a plurality of laminar structures are solidified into a whole; and a groove is formed on the surface of the vitrified micro bubble bottom layer. The preparation method comprises the following steps: preparing vitrified micro bubble insulating
slurry, and applying a layer of interface
mortar on the upper surface, the lower surface and the periphery of a rock wool plate; uniformly applying the vitrified micro bubble
slurry on the upper surface and the lower surface of the rock wool plate to form an upper vitrified micro bubble bottom layer and a lower vitrified micro bubble bottom layer; respectively bonding and paving two alkaline-resistance mesh clothes on the applied upper and lower vitrified micro bubble bottom
layers, and sewing the upper and lower vitrified micro bubble bottom
layers together; applying hydrophobic vitrified micro bubble
mortar on the alkaline-resistance mesh cloths once again to form an upper vitrified micro bubble
surface layer and a lower vitrified micro bubble
surface layer; and forming a slot on the lower vitrified micro bubble surface layer. The vitrified micro bubble composite rock wool fireproof insulating plate is used for
external wall insulation and
fireproofing, can achieve the A-level fireproof requirement, and accords with high-rise
building insulation and fireproof standards in China.