Check the items are:
Grassroots cleaning: Is the grassroots clean?
Connecting layer: whether the plastering layer is firmly bonded with the base and meets the requirements of lap joint.
Plastering thickness: whether the thickness meets the requirements. ?
Provisions on Concealed Works in Code for Installation and Construction of Sanitary Wares and Pipes in Residential Decoration Works This chapter is applicable to the installation of sanitary wares such as washing and cleaning in kitchens and bathrooms, as well as the pipeline construction of water supply pipes and indoor drainage pipes behind water inlet valves.
Extended data:
1, before plastering, shovel the mortar on the surface of brick wall and concrete, and water it overnight. When watering, the dust on the surface of brick wall and concrete shall be washed clean and poured thoroughly.
2. Because the local thickness exceeds 20MM when the bottom is rough, it must be layered to survive. The thickness of the first scraping should be controlled within 20MM and pressed hard to prevent the bottom from being rough, and the second scraping should be carried out the next day.
3. Smooth the rough bottom and the first ash cake with a wooden crab.
4. After the rough bottom is completed, make the second layer of ash cake, with the thickness controlled at 6 ~ 8 mm. The external wall must be decorated with vertical windows and horizontal windows, and the vertical lines of the door frame and the hole should be left on the wall. Install the air conditioning hole, smoke exhaust hole and water heater hole of the external wall (low outside 10MM, high inside 65438 mm), and fill the gap with fine stone concrete or cement mortar.
Install the window frame at the same time, paste the frame reinforcement (20MM frame reinforcement) at the elevation position, and protect the corner of the powder exterior wall, the side plate of the window sill, window cover and bay window (the total thickness of the side plate is controlled at 15 CM), and the foot of the exterior wall. Nodes are shown in the attached figure. Doors and windows frames and paint surfaces must be reserved with grooves (3MM deep and 5MM wide), and the grooves must be left on the front.