Zhong Da Consulting combined with the interpretation column of the construction network industry to sort out the relevant information about the plastering cost per square meter. The basic situation is as follows:
Bian Xiao takes plastering of external wall construction as an example.
The labor cost of the external wall is about 10 yuan-14 yuan/m2. It is best to buy acrylic paint, and the price of white paint is about 100 yuan/barrel (the color from 40 yuan is about 10 yuan, and the darker the color, the higher the price). One square meter is about 6-8 yuan's material cost (including accessories). Total per square meter 16-22 yuan (excluding scaffold expenses).
Construction technology of plastering external wall of building;
1, base treatment: the base surface should be kept flat and clean, free of laitance and oil stain, and the concrete such as beams and columns protruding from the wall should be leveled, and the recesses should be brushed in advance. After soaking in water, use 1∶3 cement mortar to level in layers, and use foaming agent to plug bolt holes and scaffold holes. Smooth concrete surface should be chiseled.
2, hanging vertically, looking for rules: hanging vertically, hanging heaven and earth lines in doors, windows, cribs, walls and other corners. Because the external wall is from the ground to the cornice, the plastering area is large, and the ornamental surfaces such as doors, windows, balconies, waist lines and open columns should be horizontal and vertical, and plastering operations must be carried out step by step.
Therefore, the plastering of external walls should be lifted from top to bottom at four corners (multi-storey and high-rise residential buildings should be lifted with steel wires). Then, according to the roughly determined plastering thickness, put the control line on both sides of each big corner, then pull the horizontal line, and play the horizontal line as a sign block, make a sign block in each vertical step, and then do the standard reinforcement. Cubic ash cake, and according to the ash cake reinforcement, pop-up plaster layer control line on the wall.
3. Priming: Before plastering, shovel the mortar on the surface of the brick wall and water it overnight. When watering, the dust on the surface of the brick wall will be washed clean until it is poured thoroughly. Because the local thickness exceeds 20mm when the bottom is rough, it must be layered to survive. The first scraping thickness should be controlled within 20mm, and press hard to prevent the bottom roughness from falling off. The second scraping should be done the next day. The rough bottom and the first ash cake are smoothed with wooden crabs.
4. Secondary lime plastering: 6㎜ thick 1:0.2:2.5 cement lime paste mortar (mixed with polypropylene anti-crack fiber, the dosage is 1.0kg/ m3). It should be leveled and straightened in layers, leveled with a wooden trowel, crossed or leveled and brushed.
5. Paste the grid strips: after the second plastering. Finished plastic grid strips are used for grid strips; Specifications for 20㎜ width ×4㎜ height. Soak it thoroughly with water before use, which is convenient for pasting and prevents the deformation of the frame reinforcement. According to the length of the grid line, then apply plain cement slurry on the back of the grid line with an iron trowel. The horizontal dividing line should be attached to the lower mouth of the horizontal line for easy observation. After pasting the horizontal frame bar, check its flatness with a ruler, and paste both sides of the frame bar into a splayed slope with cement slurry (if it is horizontal, wipe the mouth first).
6. The third lime plastering: 1:0.2:2.5 cement lime paste mortar (mixed with polypropylene anti-crack fiber, the dosage is 1.0kg/ m3). First, scrape a thin layer of plain cement slurry to make it stick to the bottom ash, then wipe the upper ash with ash cake and lattice strips, scrape it flat with a scraper, rub it flat with a wooden trowel, and compact, smooth and rub it flat with an iron trowel.
7. Malang wool ash: Its mixing ratio is: cement: sand = 1: 2.5. Water the bottom ash before plastering, and the amount of water should be appropriate. If the wall is too wet, plastering ash will fall off easily. If the bottom ash is too dry, it is not easy to operate and the hair is uneven.
8. Drip trough: the inner windowsill is 20mm higher than the outer windowsill, and the outer windowsill forms a drainage slope of 6%; Under the window sill, window lintel, awning, coping, balcony and protruding waist line, drip tanks should be made, the depth and width of which are 10 mm× 8 mm, and they are neat and consistent.
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