22

2024-04

[construction] construction technology of external wall elastic coating

1. base treatment
1. The cement on the new wall should be cured for at least one month, so that the alkalinity of the wall surface should be properly reduced and the wall surface should be dried thoroughly. The moisture content of the wall surface should be lower than 10%; If the ambient temperature is low, the waiting time of the wall surface will be extended accordingly.
2. Remove dust and other adhesion on the surface of the base layer. When the wall is flushed with zinc sulfate solution or dilute hydrochloric acid solution, the oil is cleaned with detergent, and finally washed with water.
3. Check the substrate for signs of hollowing
If the hollowing is not handled, the coating film will eventually fall off with the hollowing part of the substrate. Therefore, after the discovery of hollowing should stand......



2024-04-22

[construction] construction technology of external wall elastic coating

22

2024-03

The quality supervision department has taken action. Public walls require water-resistant putty.

According to the requirements of Weihai Quality Supervision Station in Shandong Province, starting from October 1, 2016, the design unit shall clearly use water-resistant putty in the construction drawings for the above-ground public parts such as stairwells and corridors of new residential construction projects that need to be scraped with putty, as well as the walls of stairwells and elevators of new public construction projects. For new public buildings, underground garages, basements and other public parts that need to be putty and are susceptible to damp, the design unit shall clearly use water-resistant putty or exterior wall putty in the construction drawings. (From Weihai Evening News)
The purpose is clear: to prevent the building indoor public parts of the wall

2024-03-22

The quality supervision department has taken action. Public walls require water-resistant putty.
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