What are the standards and measures for wall plastering maintenance?
1, wall plastering maintenance standards and measures-hollowing (concrete phenomenon is that wall plastering is separated from hollowing).
Reasons: For example, the base or wall is not clean and the adhesion is too weak; The wall or substrate is not wetted by water, and the wet mortar gypsum absorbs water quickly, resulting in dehydration; Every time the mortar is prepared, the water retention and processability are poor, and the bonding base is not firm. Because of unevenness or other reasons, the floor or ceiling frame plate supports the shell, resulting in uneven thickness and empty drum; The gap between the door and window and the wall blocks loose ash, resulting in the door or side window being hollowed out; Poor maintenance of cement mortar and dehydration lead to early hollowing.
Prevention: do a good job in grass-roots treatment, and the surface should be clean and dry; The concrete wall is too soft or the cement is brushed and mixed with wool, and 20% by weight of the tail hanging layer is added107; Mortar must maintain good machinability and adhesive strength; Lime paste or mixed with suitable plasticizer; Global and local height differences within the allowable deviation range; Strictly seal the gap between brick doors and windows with mortar; The surface layer shall not be less than seven days.
2, wall plastering maintenance standards and measures-cracks, smearing (concrete phenomenon is vertical, horizontal or irregular cracks or obvious stains on the gypsum surface).
Reason: The base ash is too heavy to be wet, and the gray coating absorbs water quickly. When cleaning the pattern and calendering, if a perforated plate is not densely filled and the overall effect cannot be achieved, the usual cracks will appear along the joint if the traction force is selected or shaken.
Prevention: before cleaning ash, especially after wet rubbing, watering, compaction and calendering; The perforated plate filled with concrete must be operated and maintained, which plays an indispensable role in preventing fracture.
3, wall plastering maintenance standards and measures-foaming and flowering. ? (The specific phenomenon is that there are blisters of different sizes on the surface or biting flowers.)
Reason: The calender jacket of the grey worker is too tight, and the mortar does not collect water, so it bubbles after calendering; The aging time of lime is not enough, and it continues after the volume expansion of immature ash particles, that is, aged gypsum, which leads to the explosion of gypsum surface and vigorous development.
Maintenance standards and measures of wall plastering. The maintenance of wall plastering has little to do with us, because we will choose professionals to carry out such decoration, but there is no harm in knowing it. You can also give some help to the owners who are preparing their own decoration.
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