The plastering layer is introduced as follows:
Plastering layer generally consists of three layers: bottom ash, middle ash and top ash.
Wall plastering is introduced as follows:
Wall plastering refers to the surface engineering of plastering cement mortar, mixed mortar and lime mortar on the wall. Indoor and outdoor wall plastering is a job after the construction of building structure is completed. Scientific plastering can play the role of moisture-proof, wind-proof and heat insulation.
Avoid the erosion of building walls by wind, rain and snow. The concrete wall constructed by large formwork is flat and smooth, but the wall constructed by large formwork is at the junction of vertical and horizontal walls, the junction of stairs, doors and windows. The wall needs to be plastered and straightened.
Plastering process is introduced as follows:
According to the level and vertical condition of the base surface, hang a vertical line and draw a long line on the wall. The angle of yin and yang should be square, and the plastering thickness should be determined through inspection, but the thinnest part should not be less than 7MM and the thickest part should not exceed 20 mm ..
The ash cake should be made into a 3 cm square shape with 1:3 cement mortar. When making ash cake, make an ash cake under the flat roof and 30CM above the ground along the height range, and then make an ash cake in the middle.
The external corners of walls, columns and doorways shall be leveled with 1:2 cement mortar, and shall be plastered into small corners after the mortar is slightly dry. The width of each side should not be greater than 5CM. All corner protectors must be square and straight. The size of the doorway is uniform, and each side is reduced by 15mm.
The thickness of bottom ash is 6 ~ 8 mm lower than that of ash cake. First, apply a thin layer to make it stick to the wall, then plaster it in layers, then slowly scrape it flat from top to bottom with a big scraper, and finally sweep it clean with a broom.
Surface mortar shall be leveled with ash cake, and the sand ratio shall not be too thick. Priming ash must be brushed overnight and plastered with mortar the next day. Scrape it flat with a scraper, and then scrape it flat with a wooden crab. Then smooth it with iron, and draw the internal angle with angle iron.
The lines of the iron trowel should be straightened left and right, and there should be no messy iron plate lines, so that the whole wall surface is smooth and smooth, and the fine lines are consistent. Then use the measuring ruler to track and check the wall, mainly to check the flatness and verticality of the wall, the founder and straightness of the angle of yin and yang, and whether there is deviation at the junction of beams and columns. If there is any deviation, it should be repaired in time until it is qualified.