1. Construction procedures for cement mortar plastering Cement mortar plastering is a frequently used construction method in home decoration and is mainly used for newly modified wall surfaces. The standard construction procedure for interior wall plastering is to find rules first, that is, to regulate the corners of the wall.
1 Horizontal line leveling, vertical line hanging straight, and then make standard gray cake, and make ribs.
2 The yin and yang angles should be searched for. The interior wall plastering should be three layers. The bottom layer should be lower than the punching ribs. The middle layer should be flattened with ribs. When the middle layer is dry to 50%~60%, the surface layer should be applied. The quality level of the cement mortar plaster will directly affect the construction period and construction quality of the surface decoration, so it must be strictly in accordance with the standard procedures.
2. The construction specification of the cement mortar must be made before the plastering. According to the thickness requirement of the plastering on the wall, a standard gray cake shall be made at the top of the corner, and the wire shall be added to the window and the corner. The bread was then made with a line of hammered hanging wire to make a standard ash cake under the wall. Crushing ribs are also an important part of guaranteeing the quality of plastering. Crushing ribs are mortar belts between the upper and the lower ash cakes. The trueness is the same as that of ash cakes. Both sides are inclined, which is an important control sign for large area plastering. . The yin and yang angle finder is also an important process directly related to the quality of the follow-up renovation project. When looking for a party, you should first base your yin and yang angles, and then use the square rule to find the right angle first, then pop up the grazing guideline on the corners and ceiling, and make gray cakes and punching ribs on the guideline and the lower ends. When plastering, before the middle mortar is solidified, diagonal marks should be drawn at regular intervals to ensure better adhesion between the surface layer and the middle layer.
3. Acceptance of cement mortar and plaster The cement mortar plaster shall meet the following standards. 2 Surface layer shall not be allowed to have explosive ash and cracks between the various gray layers, between the plaster layer and the base layer shall be firmly bonded and shall not have delamination, empty Drums and other defects, the surface is flat, clean, uniform color, no wipes, gray line king straight, clean and beautiful. Check with a 2-meter straightedge, the surface error is less than 2mm, the vertical error of the yin and yang angle is less than 2mm for the 2m bracket, the vertical error of the facade is less than 3mm, and the square error of the yin-yang angle is less than 2mm with square rule.
4. Common quality problems and treatment methods of cement mortar plaster There are delamination, empty drums, ash and cracks in cement mortar.
(1) Delamination: Mainly due to the excessive dryness of the underlying ash layer. In addition to the prevention and control methods, if the bottom layer is found to be dry, the water should be moistened, and the bottom layer should be wetted before re-wetting the surface layer. (2) Emptying drum: The main reason is that the base layer is not clean or has recesses and a plaster. Too thick and so on. Before plastering, the grassroots floor should be cleaned, and 2 to 3 days before the start of the wall watering, the depth of penetration of 10 mm before construction, there are deep recesses, mortar should be filled in advance.
(3) Explosive ash: The main reason is that the material quality is not good, there are impurities or mud. Before construction, the quality of the materials should be carefully checked. The sand must be sieved before being used.
(4) Cracks: The main reason is that the plastering layer is too thick. If the plastering surface is very thick, the construction should be filled with the bottom layer first, or sprayed with anti-cracking agent after the bottom ash is wiped. In the above cases, the cement mortar should be reworked and repaired. During the repair, the delamination, empty drum, popcorn, and cracks should be removed, and local plastering should be carried out according to the specifications.
5. The cement mortar plastering project's construction cost estimate plastering project is a construction project with strong technical and physical exertion. Under the conditions of adequate material preparation, an average of 10 square meters of plaster can be wiped by one person on the roof every day, and 14 square meters can be wiped on the wall. However, two people are required to work together. Different wall base materials and different flatness have a direct influence on the thickness and speed of the plaster, so the duration will also change significantly. Plastering works can be done in parallel with other guards.
Construction acceptance cement home renovation window
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