1. According to the standard:? Unified Standard for Acceptance of Construction Quality of Building Engineering (GB53-21) Code for Acceptance of Construction Quality of Building Decoration Engineering (GB521-21), when the total plastering thickness is greater than or equal to 35mm, strengthening measures should be taken.
2, refers to the use of lime mortar, mixed mortar, polymer mortar, hemp knife ash, paper reinforced ash, thermal insulation mortar particles, etc. to plaster the surface of the building and plaster the surface, or treat the ground with cement.
3. The relevant specifications of interior wall plastering are as follows:
(1) Before plastering, standard grey cakes must be made. According to the thickness requirements of wall plastering, one standard grey cake should be made above the corner, and the grey cakes should be added at the window and crib corner by pulling wires, and then the standard grey cakes at the lower corner of the wall should be made by hanging wires with a wire hammer.
(2) screed is also an important link to ensure the quality of plastering. screed is a mortar belt between the upper and lower ash cakes, and its authenticity is the same as that of the ash cakes. Both sides are inclined planes, which is an important control sign when plastering in a large area.
(3) Finding the angle of Yin and Yang is also an important process directly related to the quality of the subsequent decoration project. When looking for a square, you should first make a baseline at the angle of Yin and Yang, first find a square at the angle of Yang with a square ruler, then pop up a plastering alignment at the corner and ceiling, and make ash cakes and screed at the upper and lower ends of the alignment.
(4) When plastering, oblique marks should be drawn at regular intervals before the middle mortar is solidified to ensure better bonding between the surface layer and the middle layer.
4. Requirements for smoothness of wall plastering:
(1) First, check the squareness of all angles of yin and yang with a square ruler of yin and yang, and the deviation of the angles of yin and yang shall not exceed 3mm according to national requirements. ?
(2) Secondly, check the flatness and levelness of the wall with a 2-meter guide rule and a feeler gauge, and the national standard requires that the deviation should not exceed 3 mm..
(3) The ordinary plastering surface should be smooth, clean and smooth, and the frame joints should be clear.
(4) Advanced plastering surface should be smooth, clean, uniform in color and free of smearing, and frame joints and grey lines should be clear and beautiful.
(5) The verticality of the facade is 43 with 2? M vertical ruler inspection.
(6) The surface flatness of 43 is 2? M check by ruler and feeler gauge.
(7) The founder of the Yin-Yang angle 43 shall be inspected with a right-angle measuring ruler.
(8) The straightness of the framing strip (seam) is 43 with 5? M line, less than 5? M pull through the line and check with a steel ruler.
(9) The straightness of the skirting and lacing feet is 43 to 5? M line, less than 5? M pull through the line and check with a steel ruler.
Extended data
Drawing requirements
1. The joint between the wall and the concrete wall of the room, walkway, lobby and elevator shaft
is nailed with a steel wire mesh with a width of 22mm (with a diameter of .9mm and a mesh of 12.7×12.7mm), and the cement slurry (81 glue mixed with 5% of the cement weight) is thrown, with a thickness of 1: 2 mm.
2.
After the toilet, the joint between the wall and the concrete floor is nailed with a steel wire mesh with a width of 22mm (with a diameter of .9mm and a mesh of 12.7×12.7mm), and the cement slurry (81 glue mixed with 5% of the cement weight) is thrown. 2mm thick 1: 3 cement mortar plastering fine hair. Note: Floor drain is added to the bathroom.
3.
After the stairwell, nail a steel wire mesh with a width of 22mm (with a diameter of .9mm and a mesh of 12.7×12.7mm) at the joint between the wall and the concrete floor, and all of them will be thrown with cement slurry (mixed with 81 glue with 5% cement weight). Layered with 2mm thick rubber powder polystyrene particles, with 3 ~ 5 mm polymer mortar, scraping ordinary putty twice, coating twice.
detailed requirements
1. Before plastering, contact our technicians to get the architectural drawings. The drawings indicate that the width of the doorway is the size of the plastering finished surface. If there is a doorway that does not meet the requirements of the drawings, even if you contact our personnel, it is not allowed to appear that the deviation between the doorway size and the drawings exceeds .5cm after plastering is completed. The elevation of the door top is as shown in the figure, which is subject to the horizontal line on the shear wall in the building.
2. There are doorways for electric wells and pipeline wells in the building.
3. When plastering the external window, no tongue and groove are left on both sides and the top surface, only tongue and groove are left at the window sill, and the tongue and groove position is 85mm from the finished plastering surface of the external wall (11mm for the elevator hall and stairwell). The tongue-and-groove thickness is 2 mm.
Reference: Baidu Encyclopedia-Technical Disclosure of Interior Wall Plastering