The interior decoration of the room is very pleasing to the eye, so the exterior wall has to be decent, and the exterior wall is waterproof and then put the putty on the outer wall, so it doesn't look like a big contrast. The construction process of the external wall scraping putty is not necessarily well understood by everyone, so let Xiaobian take everyone to look at the relevant introductions about the wonderful content of the exterior wall putty .
First, what is the construction technology of the exterior wall putty?
1. Base treatment: cast-in-place concrete wall surface, due to various reasons such as floor slab, material, release agent, etc., the wall surface is poorly flat, often with pores, honeycomb, pockmark, yin and yang angles, and bulging, etc. It is required that the convex part be smoothed and the concave part should be filled and filled. For prefabricated concrete slabs and slab bases, it must be brushed by a special person with wire to remove debris such as floating sand, sputum, dust and other debris. For the cement mortar paper ash surface layer, the surface base layer is required to be dry and solid (no floating soil oil).
2. Base repair: After the concrete roof and the joint are cleaned, the plaster putty is filled and compacted with a steel scraper on the large defect parts such as honeycomb, and the horizontal surface is scraped and scraped once (the smooth top surface can be scraped) ). The gypsum putty ratio (weight ratio) is gypsum: emulsion: aqueous cellulose solution (concentration 5%) = 100:5 to 6:60. Brush the fire alkali solution: brush twice with a 5% concentration of caustic soda solution, if you use a 10% concentration brush once. Rinse with clean water immediately after brushing, and then dry it before proceeding to the next process.
3. Applying adhesive (milk paste): Spray the glue together before spraying the putty. The spraying must be uniform. The glue ratio (weight ratio) of the leaking spray should not be clear water: emulsion = 100:15~20. Scratch the white putty: scrape the putty with a steel scraper to scrape back and forth, pay attention to the upper and lower sides of the joint, the two scrapers should be clean, do not allow floating putty, prevent putty or mixed sand and other debris when scraping putty .
Large white putty ratio (weight ratio) is white powder: talcum powder: cellulose solution (concentration 5%): emulsion = 60: 4o: 75: 2 ~ 4.
4. Repair and polishing: After the first putty is scraped, the repaired parts should be reviewed. If there is any problem, use putty to make the leveling in the collapsed part. After the putty is dried, sandpaper is used to polish, smooth and sweep. net.
5. Putty survives: Squeeze the white putty twice, wait until the first putty is dry and then scrape the second time, generally requires at least two times to survive. It is required that the surface not only requires flatness but also uniform texture texture, otherwise it is prone to inconsistency in color depth and affect the decoration effect.
Second, what is the construction method of the external wall scraping putty?
1. Base treatment: firstly grind with 80-10 sandpaper. Before scraping the putty, carefully check the unevenness of the wall. It is required to clean the wall surface, and clean the surface of the tile with floating sand and lime soil. After confirming with the supervision company and the construction unit, the next process can be carried out.
2. Before making putty, the sample should be made. After confirming the design requirements by the three parties, according to the difference of the base layer of the wall, the number of times of the putty is generally 4 times. When the putty is scraped, it should be scraped horizontally and horizontally, and pay attention to the putty when picking up and closing the head. To scrape.
3. Looking for putty: After scraping, the pocks, potholes, scratches, etc. of the wall will be re-finished with a putty, dried and then sanded with fine sandpaper, and the dust will be cleaned to a smooth and smooth surface. Acceptance level.
How about, I read the related introduction of the external wall putty, and I also learned a lot about the external wall putty. I hope that you can learn more about home improvement knowledge through this article, and you will be able to create a more perfect home environment. Thank you for reading this article and your support and love for Xiaobian. If you want to get more information about home improvement, please continue to pay attention to the decoration home network.
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