How much is the width of the external wall deformation joint brick?
External wall masonry requirements: avoid wall weight joints and light transmission during masonry, mortar ash joints should be even, wall and beam-column interface, clean waste residue should be cleaned, brick masonry should be wet, masonry wall can not be once To the top, it should be completed in two to three times to prevent the mortar from shrinking, so that the wall is fully solid, and pay attention to the flatness detection of the wall to prevent the ash from being too thick or too thin in the next process.
2. Wall hole inspection and treatment: Before the ash is to be inspected, the wall holes should be inspected, and various holes such as the wall body should be sealed. The unevenness should be leveled with 1:3 cement mortar. If it is too thick, it should be layered and leveled. Or hang the steel mesh, bonding cloth and other batches of ash, and the holes left in the outer wall of the scaffolding, tower crane, construction elevator, etc. should be clean and moist, use the cement slurry to sweep the slurry fully, and then use the dry hard ç ¼ 2 The second half is blocked, first inside and outside, fully tamping and compacting, the water drop pipe clamp is inclined downward by 3°-5°, the expansion sleeve of the expansion sleeve is epoxy resin embedded, and the wooden wedge is strictly prohibited. The screw hole on the concrete shear wall should be chiseled around the bell mouth, filled with expanded cement mortar, and then sealed with polymer waterproof slurry to seal tightly.
3. A small amount of rising mold and honeycomb surface phenomenon appeared in the external wall of the external wall repairing wall. According to the actual situation, the following method was used to repair the surface of the concrete: 1 The mold is repaired, firstly, the convex part which is not in conformity with the design and specification requirements is chiseled. Remove and clean, then wash the base with a wire brush or pressurized water, then level with 1:2 or 1:2.5 cement mortar, and finally sprinkle water for 14 days. 2 Honeycomb repair (all found honeycomb hemp surface area is small and no deep hole phenomenon), firstly cut off the loose stone and swarf on the crotch surface, and clean it up. Secondly, before repairing, the water on the surface to be repaired should be washed with water to keep the surface of the repaired surface moist, and then leveled with water mortar of 1:2 or 1:2.5, and finally watered for 14 days.
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