Construction process, process and acceptance of cement mortar and ash in Xi'an decoration classroom
1. Construction procedures for cement mortar and ash The construction procedure for the internal wall ash is to find the rules firstly, that is, to make the four corners of the wall to be leveled by a horizontal line, vertical lines should be straightened, then the standard ash cake should be made, and the rams should be made. ; 2 yin and yang angle to find square, the internal wall of ash should be three, the underlying layer should be lower than the ribs, the middle layer of flat Chongjin, the middle layer is dry to 50-60%, the coated surface layer.
2. Specification for the construction of cement mortar and ash The standard ash cake must be prepared before the ash. According to the thickness requirements of the wall ash, one ash cake shall be made at each corner of the wall, and the ash cake shall be made at the window and corners. Then use the line hammer to make the standard gray ash cake under the wall.
Crushing ribs are also an important part of ash quality. Crushing ribs are mortar belts between upper and lower ash cakes. Their height is the same as that of ash cakes. Both sides are beveled, which is an important control sign for large area ash ash.
The yin and yang angle finder is also an important process directly related to the quality of the follow-up renovation project. When finding a party, you should first make a baseline at the corner of Yin Yang, use a square rule to find the square first, and then pop the ash guideline at the corner and ceiling, and make grey cakes and punching ribs on the guideline and upper and lower ends.
In the case of ash, before the middle mortar is solidified, diagonal marks should be drawn at regular intervals to ensure better adhesion between the surface layer and the middle layer.
3, the quality requirements of cement mortar ash 1 ash base layer should be handled clean, soaking the water, after the end of ash should be sprinkled water conservation, to prevent empty cracking.
2 When the wall is relatively dry, the cover ash is not easy to calender, the use of force over the General Assembly cause the ash to separate empty drums or the surface of the cement mortar layer pressed into black, so when the wall is dry, you must first sprinkle water and then pressure.
3 When the cover surface is ash, the original slurry should be calendered, and no dry surface or scratched cement slurry shall be scattered.
4 Generally, five lines are required for the internal wall and the cylinder ash: the sun corner line, the female corner line, the wall, the column and the ceiling line, the kick line (or wall skirt), the straight line, and the skirting board (or Wall skirt) Straight line with the ground.
4. Common Quality Problems and Treatment Methods of Cement Mortar Dust Common delamination, empty drum, pop ash and cracks are common problems in cement mortar dust.
1 Delamination: Mainly because the underlying ash layer is too dry. In addition to the prevention and control methods in accordance with the requirements of the construction, if it is found that the bottom has been dry, should be sprinkled with water wet, until the bottom of the wet and then the surface layer of ash.
2 empty drum: The main reason is that the grassroots processing is not clean or has a recess, a thick ash and so on. The base should be cleaned up before ashing, and the wall surface should be watered 2-3 days in advance. If the depth of water seepage is 10mm, it can be constructed. If there is deep depression, mortar should be filled up in advance.
3 Explosive ash: The main reason is poor material quality, with impurities or mud. Before construction, the quality of the material should be carefully checked. The sand must be sieved before use.
4 Cracks: The main reason is that the ash layer is too thick. If the ash surface is thick, the construction should be filled with the bottom layer or sprayed with anti-cracking agent after the bottom ash.
In the above situation, the cement mortar should be reworked and repaired. During the repair, the delamination, hollowing, popping, and cracking should be removed, and local ashing should be carried out according to the specifications.
Acceptance Criteria:
1 Each ash layer must adhere firmly to the base layer and there must be no defects such as empty drums or cracks.
2 The ash surface should be smooth, clean, free of tarnish, and invisible, uniform in color, clear and beautiful.
3 Check with a 2m ruler and feeler gauge, the surface error is less than 2mm, the vertical error of the yin and yang angle is less than 2mm on a 3m ruler, the vertical error of the facade is less than 3mm, and the square error of the yin and yang angle is less than 2mm with a square ruler.
1. Construction procedures for cement mortar and ash The construction procedure for the internal wall ash is to find the rules firstly, that is, to make the four corners of the wall to be leveled by a horizontal line, vertical lines should be straightened, then the standard ash cake should be made, and the rams should be made. ; 2 yin and yang angle to find square, the internal wall of ash should be three, the underlying layer should be lower than the ribs, the middle layer of flat Chongjin, the middle layer is dry to 50-60%, the coated surface layer.
2. Specification for the construction of cement mortar and ash The standard ash cake must be prepared before the ash. According to the thickness requirements of the wall ash, one ash cake shall be made at each corner of the wall, and the ash cake shall be made at the window and corners. Then use the line hammer to make the standard gray ash cake under the wall.
Crushing ribs are also an important part of ash quality. Crushing ribs are mortar belts between upper and lower ash cakes. Their height is the same as that of ash cakes. Both sides are beveled, which is an important control sign for large area ash ash.
The yin and yang angle finder is also an important process directly related to the quality of the follow-up renovation project. When finding a party, you should first make a baseline at the corner of Yin Yang, use a square rule to find the square first, and then pop the ash guideline at the corner and ceiling, and make grey cakes and punching ribs on the guideline and upper and lower ends.
In the case of ash, before the middle mortar is solidified, diagonal marks should be drawn at regular intervals to ensure better adhesion between the surface layer and the middle layer.
3, the quality requirements of cement mortar ash 1 ash base layer should be handled clean, soaking the water, after the end of ash should be sprinkled water conservation, to prevent empty cracking.
2 When the wall is relatively dry, the cover ash is not easy to calender, the use of force over the General Assembly cause the ash to separate empty drums or the surface of the cement mortar layer pressed into black, so when the wall is dry, you must first sprinkle water and then pressure.
3 When the cover surface is ash, the original slurry should be calendered, and no dry surface or scratched cement slurry shall be scattered.
4 Generally, five lines are required for the internal wall and the cylinder ash: the sun corner line, the female corner line, the wall, the column and the ceiling line, the kick line (or wall skirt), the straight line, and the skirting board (or Wall skirt) Straight line with the ground.
4. Common Quality Problems and Treatment Methods of Cement Mortar Dust Common delamination, empty drum, pop ash and cracks are common problems in cement mortar dust.
1 Delamination: Mainly because the underlying ash layer is too dry. In addition to the prevention and control methods in accordance with the requirements of the construction, if it is found that the bottom has been dry, should be sprinkled with water wet, until the bottom of the wet and then the surface layer of ash.
2 empty drum: The main reason is that the grassroots processing is not clean or has a recess, a thick ash and so on. The base should be cleaned up before ashing, and the wall surface should be watered 2-3 days in advance. If the depth of water seepage is 10mm, it can be constructed. If there is deep depression, mortar should be filled up in advance.
3 Explosive ash: The main reason is poor material quality, with impurities or mud. Before construction, the quality of the material should be carefully checked. The sand must be sieved before use.
4 Cracks: The main reason is that the ash layer is too thick. If the ash surface is thick, the construction should be filled with the bottom layer or sprayed with anti-cracking agent after the bottom ash.
In the above situation, the cement mortar should be reworked and repaired. During the repair, the delamination, hollowing, popping, and cracking should be removed, and local ashing should be carried out according to the specifications.
Acceptance Criteria:
1 Each ash layer must adhere firmly to the base layer and there must be no defects such as empty drums or cracks.
2 The ash surface should be smooth, clean, free of tarnish, and invisible, uniform in color, clear and beautiful.
3 Check with a 2m ruler and feeler gauge, the surface error is less than 2mm, the vertical error of the yin and yang angle is less than 2mm on a 3m ruler, the vertical error of the facade is less than 3mm, and the square error of the yin and yang angle is less than 2mm with a square ruler.
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