Double-deck fireproof door crack structure and construction process thereof

Abstract

The invention discloses a double-deck fireproof door crack structure and a construction process thereof. Particularly, the construction process of the double-deck fireproof door crack structure comprises the following steps that S1, corner clips are fixedly mounted at the four corners of the crack correspondingly; S2, a fire retardant cotton layer with the width the same as that of the crack is filled between the upper and lower corner clips on the left side as well as between the upper and lower corner clips on the right side; S3, a gypsum board is mounted on each fire retardant cotton layer; S4, three putty layers are coated on each gypsum board sequentially; S5, three decoration material layers are coated on every three adjacent putty layers sequentially; and S6, after decoration materials are air-dried, concrete is blended and pasted into transverse crack bodies in the crack, and finally ceramic tiles or coating materials are pasted on concrete layers, so that the outer end face of the crack is located in the same plane as the end face of an outer layer door frame or the end face of an inner layer door frame. The obtained construction process of the double-deck fireproof door crack structure is easy to operate, and the constructed double-deck fireproof door crack structure has the advantages of being firm in structure, attractive in appearance, and good in fireproof performance.

Description

technical field [0001] The invention relates to a crack treatment of a double-layer fire door, in particular to a crack structure of a double-layer fire door and a construction process thereof. Background technique [0002] In building fire protection design, in order to increase the fire resistance time, double-layer fire doors are usually used. For example, archives have two layers of fire doors. The outer door is a steel door, and the inner door is a steel and wood door. After adopting the above-mentioned double-layer fire door design, although it can improve the fire-resistant time when a fire occurs, this type of design still has the following defects: during the construction process, it is found that there will be gaps between the two door frames, which will affect the appearance and overall decoration effect. At the same time, some impurities are also easy to fall in the cracks, causing great difficulties in cleaning. In view of the above situation, at present, the c...

AI Technical Summary

Problems solved by technology

[0004] There is a rectangular gap between the door frames of the existing double-layer fire doors, which not only affects the appearance of the double-layer fire doors and the overall decoration effect, but also causes external impurities to fall into the gap, making it difficult to clean

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