External wall plastering construction scheme

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The exterior wall plastering project refers to the system construction process in which the surface of the base material is applied with a plastering mortar, which has the function of protecting the base layer and adding aesthetics, and providing special functions for the building. Next, follow the decoration home network Xiaobian to learn about the exterior plastering construction plan , the relevant content of the external wall plastering process!


外墙抹灰施工方案


Exterior wall plastering construction plan I. Construction preparation:


1, the main materials: E100 primer, 325 cement, E1662 elastic paint, tape, abrasive cloth, 791 glue;


2, the main equipment: simple level, line package, hair roll, spray gun, small pull special roll, tweezers, open knife and so on.


Exterior wall plastering construction plan II. Working conditions:


1. Doors and windows are installed according to design requirements, and the gap around the hole is blocked.


2, the wall surface treatment is completed, and meets the design process requirements, according to the plaster surface standard acceptance, meet the spraying conditions, complete the installation of the rainwater pipe card, equipment hole pipe, and the surrounding of the hole with cement mortar, all the wall needs Dry.


3, double-row shelf or activity hanging blue, to meet the requirements of national security regulations, the outer frame row wood 320cm from the wall.


4. All finished doors and windows should be protected in advance.


Exterior wall plastering construction plan III. Operation process:


1. Process flow:


Wall surface treatment, acceptance → elastic wire, grid, adhesive strip → brush seal primer → paste dividing line → use special hair roller to pull hair → brush elastic paint two → brush topcoat → partial repair


2, grassroots processing:


After the acceptance of the base layer is qualified, a partial repair is made.


Requirements: smooth, smooth, no oil, no cracks, no voids, no blisters, flat and straight.


3, brush the primer:


The primer is brushed on the base layer of the primer, and the brush is required to be evenly brushed.


4, paste the dividing line: (recommended)


In order to ensure uniform hair-drawing effect, it is recommended to use a rubber strip for the dividing line to paste.


5, special hair roller for pulling:


Requirement: Use a special hair roller to pull the hair, and ensure that the fancy is uniform, no knots, no contiguous. After the hair is finished, it should be allowed to dry naturally for about 4 hours to ensure that the elastic paint is applied on the basis of the dry surface.


6, brush elastic paint two:


Requirements: 5% (volume ratio) of clean water can be added as needed to apply evenly, without bottoming. Before painting, the base surface is required to be flat, smooth and straight. Then brush the elastic paint.


7, brush topcoat together:


Requirements: 5% (volume ratio) of fresh water can be added as needed. Uniform, no-leakage phenomenon, the color separation lines should be clear, straight, straight.


8. Check the construction quality and repair local pollution or other links.


Exterior wall plastering construction plan IV. Quality standards:


1. Guaranteed items:


The variety, color and quality of the product must meet the design requirements and be constructed according to the technology.


2, the surface of the finished product is required to have no obvious joints, leaks, bottoms, and falling.


外墙抹灰施工方案


Exterior wall plastering construction plan five, finished product protection:


1. During the construction, the doors and windows and the non-construction parts are shielded and protected.


2. It is strictly forbidden to use the construction sequence from bottom to top to avoid color pollution.


3. When removing the shelf or hanging the blue, it is forbidden to damage the wall coating.


4. Finished finished products are strictly prohibited from being stepped on to prevent pollution.


Exterior wall plastering construction plan VI. Quality problems that should be noted:


1. The phenomenon of connection:


The main reason is that due to the overlapping of the coatings, the topcoats are not the same. Therefore, the following measures can be taken to avoid contact during construction.


(1) The link should be placed on the grid line.


(2) It is best to work once and not to repair. This requires layer-by-layer acceptance and strict quality control to avoid contact.


2, empty drum and crack phenomenon:


The main reason is that the underlying plaster is not caused by the construction of the process. Therefore, before the construction, the wall surface of the cement mortar should be inspected and accepted. Otherwise, the surface layer can not be applied.


3. The phenomenon of scorpion appears on the surface layer:


The main reason: in the construction of cast-in-place concrete, due to the scorpion caused by the formwork joints, before the surface layer construction, these joints should be corrected in the plastering process to meet the standard of plastering surface. This phenomenon can be avoided after the surface layer is constructed.


Exterior wall plastering construction plan VII, quality record:


1. Product certificate and test report of the product.


2, quality inspection assessment record


Exterior wall plastering construction plan 8. Construction of exterior wall architectural coating:


New wall coating construction:


The bottom layer of the exterior wall of the building requires sufficient curing period. The new water mortar concrete surface must undergo reasonable curing time to allow it to “salt alkali” and dry thoroughly. The surface of the bottom layer should be dry, firm and firm, and should not have defects such as sanding, cracking and loosening.


Construction method:


The exterior wall painting should not be applied to a large area of ​​putty, the layer of putty should not be too thick, and the material is made of polymer cement putty. Generally, the primer is applied once and the surface is applied twice. According to the quality requirements of the project, the number of surface coatings can be appropriately increased. Painting construction is generally carried out from top to bottom, and each application should be bounded by a dividing line, a wall surface, a junction of the yin and yang corners or a downpipe.


Operating tools:


Rolling, brushing or air and airless spraying are generally used.


(1) Operation process


Base treatment → watering and wetting base layer → finding rules, making gray cake, marking ribs → smearing ash, medium ash → elastic dividing line, embedded dividing strip → plastering ash → starting grid strip - curing.


(2) Construction points


1. Plastering sequence. The plastering of the exterior wall should be preceded by the upper part and the lower part of the wall. For high-rise buildings, one construction section should be divided according to a certain number of layers, and the vertical direction should be controlled by the theodolite instead of the vertical line.


A large area of ​​the outer wall can be constructed at the same time. If it can not be finished at one time, it can be intermittently constructed at the intersection of the yin and yang junctions.


2. Find the rules, do the gray cake, and mark the ribs: first pull the horizontal line on the top of the wall, do the gray cake on the top two corners, and then use the support board to hang the vertical line according to the thickness of the gray cake, and make the gray cake below the two corners. Then, hang the small line between the upper two corners and the lower gray cake, make the upper and lower ash cake every 1.2-1.5m, pull the vertical thread, and then make the vertical gray cake according to the height of each step scaffold. Connect the gray cake sides and make horizontal or vertical reinforcements. The gray cake and the ribs are all smeared with 1:3 cement mortar, and the size should be 50mm see square body and 50mm wide strip shape. The upper edge of the door window, the window sill and the column should be pulled through the line to make the gray cake and the corresponding ribs or signs.


3. Wiping the bottom layer and the middle layer ash: the proportion of the bottom layer and the middle layer ash should meet the design requirements, generally 1:3 cement mortar or 1:6 cement mixed mortar. After the watering of the wall is wet, firstly apply a layer of 5~8mm thick bottom ash between the ribs, and force the mortar into the brick joint. The bottom layer should be condensed and then the middle layer ash should be slightly higher than the two sides. The ribs are scraped with the scraping on both sides from the top to the bottom, smoothed with a wooden trowel, and the surface is swept with a small bamboo shovel, or the steel trowel is used to smooth the surface, so as to smear the ash; The plaster on the base layer should be laid with a layer of barbed wire at the joint. The edge of the mesh should be larger than 100mm from the joint, and the wire mesh should be laid in the middle of the bottom ash.


4. The bullet line and the embedded grid. When the ash is dry to 6-7% dry, the grid lines are popped up as required, and the grids are inlaid. On both sides of the grid, the cement paste (preferably with l07 glue) is applied to the wall to form a 45. angle, horizontal and vertical, and the joint is straight.


5. Wiping the surface layer ash: Before the ash layer is applied, it should be wet according to the dryness and humidity of the middle layer mortar. The thickness of the surface layer is 5 to 8 mm, and should be slightly higher than the grid. After plastering, first scrape with a scraper, then use a mortar to level it, and then press it with a steel trowel. Wait a little dry, use a soft brush to rub the water in the same direction, to ensure the same color. Before the final setting of the mortar, use a steel trowel to carefully press the light as required. When the top layer requires bristles, scrape it with a scraper and use a wooden trowel to sharpen the smooth, rough, even surface. When honing, use a broom to sprinkle water while honing with a wooden trowel. The honing force should be the same and the same direction, in order to achieve the same color and smear.


6. Make a drip line. Window sills, awnings, pressing tops, lattices, etc. should be smeared first, then topped, and then smeared. The top surface should be wiped out of the flow gradient, and the outer edge of the bottom surface should be made into a drip line groove. The drip line groove is generally 10 mm deep, the upper mouth is 7 mm wide, and the lower mouth is 10 mm wide. The plaster layer on the window sill should extend into the window frame. Inside the cut, the blockage is dense.


7. Remove the division bar. The time to remove the division bar can be after the surface is smeared. If an "overnight" overlay is used. It must be removed after the surface mortar has reached the appropriate strength:


8. Maintenance: After 24 hours of surface coating, watering should be maintained. The curing time should be determined according to the temperature conditions, generally not less than 7 days.


The above is the external wall plastering construction plan, the detailed solution of the external wall plastering process, I do not know if you are satisfied with the introduction of the decoration home network Xiaobian. If you want to know more about the exciting content, please continue to pay attention to our home encyclopedia!


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