Construction method and steps of inorganic insulation mortar fireproof isolation belt insulation layer

The construction method and steps of the inorganic insulation mortar fireproof isolation belt insulation layer mainly include the following aspects:

1. When reserving a 300mm fireproof isolation belt, you can use a 50mm wide and 300mm high inorganic insulation board to fully glue it The inorganic insulation board is pasted with mortar on the fire isolation belt to support its upper part.

2. Apply inorganic thermal insulation mortar to the insulation layer in at least 2-3 passes. The inorganic thermal insulation mortar applied in each pass is 10-20mm. The thickness of the first pass should be controlled at about 10mm. Pay attention to compaction. The thickness of one pass of construction should be controlled at about 10mm, and the interval between every two passes of construction should be more than 24 hours. When the construction temperature is low, the interval can be extended.

3. The construction of inorganic thermal insulation mortar should be from top to bottom.

4. During the construction of the last layer of inorganic thermal insulation mortar insulation layer, the thickness of the ash cake punching ribs should be reached, and it should be rubbed flat with a large bar to make the flatness of the walls, doors and windows meet the requirements. Pay attention to the application of the insulation slurry. Press and compact.

5. The prepared inorganic thermal insulation mortar should be used up within 4 hours. The inorganic thermal insulation mortar scraped off by the big bar must be stirred and reused within 4 hours. It is strictly forbidden to use outdated inorganic thermal insulation mortar.

6. After the insulation layer is cured and dried (the surface cannot be pressed by hand, about 2-3 days), the next construction process can be carried out. If the ambient temperature is low, the curing time should be extended.

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