① Hair throwing: Before construction, the base should be leveled, and after hair throwing, local reinforcement should be prevented. For aerated concrete block walls, measures should be taken to increase the degree of cohesion and prevent cracks, that is, to spin dry or brush cement mortar on the substrate. At the same time, when the surface of aerated concrete block wall is painted with primer, it is best to add anti-crack net, alkali-resistant glass fiber net or steel wire net.

(2) Brushing: After plastering the mortar on the base surface, immediately touch the plastering surface with a trowel or by hand, so that the mortar surface on the plastering surface can be separated from the roughening surface (this method requires concrete mortar and good consistency during construction).

(3) Slurry throwing: Slurry throwing is a method of combining cement slurry with base. In order to increase the bonding between the base and the surface plastering layer, some adhesives are added to the cement slurry, and the diluted cement slurry is combined with the wall base with tools such as brushes, rollers and brooms.

Extended data:

A, interior wall plastering process

Clean the base of the wall → water the wall to wet it → roughen the formwork on the concrete surface for "roughening treatment" → throw the hair → hang the net → hang the vertical, square and mortar layer control line → adjust the exposed length of the wall-leaving parts such as the junction box according to the thickness of the ash cake → protect the corner with cement → coat the bottom mortar → coat the surface mortar → maintain.

Second, the interior wall plastering control measures

1, wall foundation cleaning: concrete swelling, chiseling. It is forbidden to plaster first and then chisel.

2. Watering the wall: the wall should be watered and moistened from top to bottom with a thin tube. The wetting depth of brick wall surface is 15mm, and the wetting depth of concrete surface is 8 mm, which should generally be carried out one to two days before plastering.

3. Scraping: 1: 1 cement mortar mixed with 8% building glue should be used, and the consistency is appropriate. Shaving with a machine or broom, the burr should be firmly bonded and the burr density should be uniform.

4. Strengthen the setting of network department.

5, screed to find a square or paste ash cake.

6, do cement corner protector.

7, wipe the bottom ash.

8, plaster mortar

9, plastering cement baseboard

Third, the external wall plastering process

Hanging vertical steel wires at every corner of the wall → cleaning the wall surface, watering and wetting it → chiseling at the rising formwork of concrete surface → "galling" → strengthening mesh fixation → hanging vertical plastering cake for wall surface screed → plastering the base ash → plastering the surface mortar → curing.

Fourth, the external wall plastering control measures

1, external wall plastering preparation:

(1) The plastering thickness of concrete columns, walls and beams on each side of the external wall must be greater than15 ㎜;

(2) Check whether the mortar joint between the wall beam and the wall column blocks the seal. If there are blind seams and open seams, they must be sealed first.

2, the external wall at the grass-roots level processing and hanging net:

Exterior wall hanging net, appropriate USES φ 1 galvanized steel mesh (20*20 mesh) full hanging, mesh handover site is greater than100 mm; ; Hang the net with special insulating nails.

3, external wall plastering requirements

4, drip line (slot) Settings

5, all kinds of exterior wall decoration line setting requirements

6, doors and Windows mouth convergent

References:

Building Baidu Encyclopedia