China Naming Network - Eight-character Q&A - What should I do if the joints of the splayed wall of the bridge fall off?

What should I do if the joints of the splayed wall of the bridge fall off?

Scrape putty to repair.

There are many cracks in the wall, some of which have fallen off. We need to find the reason and renovate the walls.

First, scrape the width of the gap with a putty knife, and scrape it into a figure of eight, with a wide outside and a narrow inside. Then plug the gap with gypsum block dry powder, the depth of the plug is not less than 30-40mm, and it is not necessary to fill the wall, which is lower than the wall1-1.5 mm. Brush the gap with 108 glue and stick glass cloth or kraft paper strips. Then scrape the original wall with 82 1 putty for 2-3 times, and polish it with sandpaper after drying. Finally, adjust the wall coating. After the coating is adjusted, brush the sample first. Compared with the wall color after drying, the color is close and the color difference is not big. Then paint the wall.

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