What is the basic technology of cement mortar plastering?

I believe everyone is familiar with cement mortar, which can be found in engineering buildings, but do you know? The application of cement mortar plastering also has some related regulations, such as the thickness of cement mortar plastering? What is the basic technology of cement mortar plastering? If you want to make this knowledge unclear, let's look at it from all aspects.

What is the thickness of cement mortar plastering?

This is actually in line with the usage specifications. Wall plastering is generally divided into three layers. The total thickness of the bottom layer, middle and high-rise layer, integral surface layer and three layers is 15-20mm, and the thickness is not more than 25 mm. Generally, the bottom layer is 5 mm, the middle and high-rise layer is 5- 12 mm, and the integral surface layer is 2-5 mm. It should be noted that it is best not to exceed 20 mm, and hierarchical engineering construction is required. Scraping "rough overnight" part of the area, if the plaster thickness is thick, steel wire mesh or glass fiber mesh should be placed to avoid cracking of cement mortar.

What is the basic technology of cement mortar plastering?

1, the basic technology of cement mortar plastering

Find the rules → find the corners of the wall → level the ground, hang the solid line straight → make standardized ash cake and its screed → find the angle of yin and yang → plaster the internal and external walls → the bottom layer is smaller than the screed → spread the screed in the middle and high floors → decorate the surface layer.

2, cement mortar plastering engineering construction points

Before plastering, standardized ash cake should be made first. Tightening is also an important content to ensure the quality of plastering, and it is also a key control sign in large-scale plastering. Finding the square of Yin-Yang angle is the key technological process related to the decoration quality of subsequent projects.

3, cement mortar plastering construction technology

Before plastering, make standard ash cake. According to the thickness of wall plastering, make a standard ash cake above the foundation, add a hanging line at the corner of the dialog box and its crib, and then make a standard ash cake under the wall with a wire hammer. In fact, screed is also an important content to ensure the quality of plastering. The leveling layer is the cement mortar belt between the upper and lower ash cakes, and its authenticity is the same as that of the ash cakes, with slopes on both sides, which is the key control sign of large-scale plastering.

Finding the square of Yin and Yang angle is an important technological process related to the construction quality of the later decoration project. When looking for a square, first go to the corner of Yin and Yang to make a baseline, first use a square to find the corner of Yin and Yang, then pop up a parabola on the wall and ceiling, and make ash cakes and screed on the upper and lower sides of the parabola. When plastering, before the middle and high-rise mortar is solidified, diagonal marks will be drawn at regular intervals in a cross way to ensure that the whole surface layer and inner layer can be better bonded.

4, cement mortar plastering engineering acceptance

The deviation of its surface can actually be less than 2mm when checked with a 2 m ruler. When checking with 2m support plate, the vertical deviation of Yin-Yang angle should be less than 2mm, and the vertical deviation of facade should be less than 3mm. Check with a square that the square deviation of the angle of Yin and Yang is less than 2mm.

5. Common product quality problems and treatment methods of cement mortar plastering. The common product quality problems of cement mortar plastering are delamination, wall hollowing, ash explosion and cracks.