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It turns out that there is an air condition, and there may be oil stains from the original model board. Find a plasterer to repair it, it is best to brush a layer of interface glue first to prevent it from falling off again.
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It is best to find a professional to fix it. Now there is a spray patch on the Internet, however, it is more troublesome to make up if it is too thick. It's better to ask someone to do it.
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If this kind of thing can't be solved, it may be solved with money, so you can go to the cement worker and ask him to help you fix it.
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First chisel out the 20mm range around the perimeter of the ceiling, and in the process of chiseling, never use percussion drills and other tools or manual vigorous chisel, but only gently chisel by manpower, so as not to negatively affect the periphery.
The bottom surface of the original floor slab must be scrubbed clean with a wire brush, if the surface is too smooth, it must be gently chiseled with a chisel, cleaned again, and then leveled with cement, and swept at the position with cement oil or 1:1 cement mortar.
After three days, the cement mortar with a strength level higher than the original design requirements can be leveled, and after a series of preliminary preparations have been completed, the ceiling of the fallen place will be filled.
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1. Treatment and remedy:
If it falls off in a small area, you can re-brush the interface agent locally and then apply putty, but there will be a color difference between the old and new walls. If the area of detachment is large and affects the overall appearance, you can remove all the wall skin or ceiling and do it again.
Steps: Shovel off the original wall skin or ceiling - brush the interface agent - wipe putty - polish the wall - brush latex paint.
2. Tips: What is the reason for the cement skin falling off the ceiling of the living room?
Ceiling peeling cement skin is more common in decoration, usually the following four reasons will cause the cement skin to fall off.
1) The walls and ceilings are not wet before being smoothed with cement. Builders must wet the walls and ceilings before smoothing the walls and ceilings with cement in the construction of the house, and if the walls and tops are too dry, the cement will not be firmly pasted and fall off for a long time.
2) The ratio of cement and mortar is not appropriate. Generally, the raw materials required for wall and ceiling plastering are cement and mortar. If the ratio of cement and mortar is 1:
2. Or, the cement that is scraped flat is firmly pasted, and if too much mortar is mixed in, it will cause the ceiling or wall skin to fall off.
3) Do not brush the interface agent before applying putty. The interface agent can enhance the adhesion between the putty and the ceiling, and the wall or ceiling will not fall off after brushing the interface agent.
4) When handing over the room, the plain ash of the wall and ceiling is not removed and the putty is directly smeared. In order to look good, the developer usually paints the whole house with plain ash when handing over the house, and must shovel off all the plain ash when decorating and treating the walls and ceilings. However, some decoration workers cut corners in the wall construction and did not shovel off the plain ash, and directly smeared putty on the plain ash layer, which is easy to cause a large area of the wall and ceiling to fall off after a few years.
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First of all, we must carefully analyze the reasons for the ash loss! Then determine the re-construction method, according to the analysis of the common problems of the building, it is likely that the bottom of the concrete slab has oil stains (or mud, sand) caused by the separation of the bottom of the concrete slab and the white ash of the ceiling surface, and does not form a whole! Once the cause has been determined, destroy the cause and eliminate it as well as the one that did not fall, and then use 1:
2.Cement mortar priming, 1:2 lime mortar twice powder surface layer on the line, for the gusset plate ceiling that is better!
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Check whether there are cracks in the concrete floor structure after the surface layer falls off, and if there is no problem with the structure, simply deal with the lower layer and re-apply the mortar.
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Upstairs said well, knock off the surface layer that is not well combined with the base layer and redo, and live safely, but the drop of cement has nothing to do with the structure, and live with peace of mind.
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Why does the cement ceiling fall off and what are the remedies.
Reasons for the fall of the ceiling cement layer: 1. The bottom surface of the floor slab is not cleaned: In the construction specifications and design requirements, the ceiling plastering only requires that the bottom surface of the floor must be cleaned, and there is no explicit requirement for the treatment of the bottom surface of the floor slab before plastering.
2. Unqualified construction technology: In the construction of the main structure, most of the formwork projects use steel plates or large splints. The new steel plate or splint is used as a bridge and lacks a template, and it is easy to form a smooth surface on the bottom surface of the floor concrete.
Construction technicians often ignore this aspect of disclosure in the process of technical disclosure. Workers in the process of plastering the ceiling, often rely on their own experience in construction, due to the uneven quality of workers, resulting in part of the floor slab bottom failed to be well combined with the plastering layer; In the process of plastering the ceiling, the mortar mix ratio is not strictly controlled, and the construction is not strictly in accordance with the relevant design and specification requirements. 3. The temperature difference changes greatly
Over time, changes in temperature may cause separation between the concrete and the plastering layer, as well as shrinkage of the material of the concrete and the plastering layer itself, resulting in insufficient adhesion between the ceiling plastering layer and the floor floor to bear the weight of the plastering layer. 4. External force: Because the floor slab has to bear various loads, especially the external force that makes the floor vibrate.
In this way, it is easy to cause the separation of the floor slab bottom and the plastering layer. Ceiling cement layer drop treatment method: 1, chisel first:
The 200 range around the perimeter of the falling ceiling must be chiseled, and in the process of chiseling, it must not be vigorously chiseled by tools such as percussion drills or manually. It can only be gently chiseled by manpower so as not to affect the surrounding area. 2. Then dry:
The bottom surface of the original floor slab must be scrubbed clean with a wire brush, and if the surface is too smooth, it must be gently chiseled with a chisel and then cleaned. 3. Then use cement to level it: use cement oil or 1:
1. Cement mortar is swept in this position. After three days, the cement mortar can be leveled with a strength grade higher than the original design requirements. 4. Final installation:
After a series of preliminary preparations, the ceiling of the falling place will be mended. Min Yao Wei thinks it's useful, give it a thumbs up.
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Ceiling cement blocks should not be used to mix putty with cement.
If only a few pieces of wall skin are peeling off on the ceiling, it is recommended to clean the peeling area first, then apply cement evenly, level it with putty, and paint the wall paint of the same color.
If the ceiling wall skin falls off in a large area, this situation should directly remove the entire ceiling wall skin, and deal with the dust, not only the treatment of the cement layer, then putty and other series of construction, and finally repaint and decorate with latex paint, so that the ceiling repair work can be dealt with.
The ceiling is the cause of the wall skin.
1. The grassroots is not handled well.
Before the construction of the ceiling, the base layer should be drenched with water, and then the cement construction should be carried out. If the construction is carried out directly without wetting, it will cause the ceiling base to absorb the moisture in the cement, causing the cement to dry too quickly and causing the wall skin to fall off. Therefore, it is necessary to wet both the walls and ceiling before construction.
2. There is a problem with the proportion of cement mortar.
Cement mortar should be blended according to a strict ratio, and the ratio of cement and mortar is 1:2 or 1:. However, if the construction is not proportional, the ceiling skin will fall off after a long time.
3. There is no interface agent.
Before scraping putty on the ceiling, pay attention to brush the interface agent first, which can enhance the adhesion of the putty layer. If the interface is not brushed, the ceiling is prone to peeling off.
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Summary. Hello, I'm glad to be able to answer your questions, after being burned, it needs to be reinforced, the prefabricated slab is pulled apart, damaged, and can be refilled with cement mortar, and the reinforcement is thickened; The roof can be moved, and the roof can be supported by iron pipes or brick stacks; For brick and timber houses, the connection between the wooden roof truss and the purlin can be strengthened with "pick-up nails"; Strengthen the connection between the gable and the purlin with a backing plate, and add diagonal braces between the wooden columns to reinforce; The roof slope should be straightened; Grooved and split wooden roof trusses should be added with attached beams and attached columns, I hope mine can help you.
What to do with the fire of the cement ceiling?
Hello, I am Teacher Romantic, I am glad to be able to answer your questions, I am sorting out the answers, please be patient.
Hello, I'm glad to be able to answer your questions, after being burned, it needs to be reinforced, the prefabricated slab is pulled apart, damaged, and can be refilled with cement mortar, and the reinforcement is thickened; The roof can be moved, and the roof can be supported by iron pipes or brick stacks; For brick and timber houses, the connection between the wooden roof truss and the purlin can be strengthened with "pick-up nails"; Strengthen the connection between the gable and the purlin with a backing plate, and add diagonal braces between the wooden columns to reinforce; The roof slope should be straightened; Grooved and split wooden roof trusses should be added with attached beams and attached columns, I hope mine can help you.
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