What to do if the wall is alkali-repellent? Summary of hot topics and solutions across the Internet in 10 days
Recently, the problem of alkali resistance on walls has become one of the hot topics in the field of home decoration. According to the hot spot data analysis of the entire network in the past 10 days, such problems are particularly prominent in humid areas in the south, especially after the rainy season, the number of consultations surges. This article will provide you with structured solutions based on the latest hot topics of discussion.
1. Hot data on anti-alkali problems on walls across the entire network
| Platform | Amount of related topics | Maximum heat value | main focus |
|---|---|---|---|
| Douyin | 23,000 items | 8.5 million | Quick processing method |
| little red book | 18,000 articles | 6.2 million | Precautions |
| Baidu knows | 4600 items | 3.2 million | Professional construction advice |
| Zhihu | 1200 questions and answers | 2.8 million | Analysis of chemical principles |
2. Analysis of the causes of alkali reversion on the wall
According to recent professional discussions, alkali reversion on walls is mainly due to:
1.Material factors: The alkali content of cement mortar is too high (PH value > 9)
2.environmental factors: Air humidity >70% for more than 48 hours
3.Construction issues: The waterproof layer is not properly processed (accounting for 67% of cases)
4.time factor: 1-2 years after the delivery of a new house is the period of high incidence
| area | incidence | High season |
|---|---|---|
| South China | 78% | March-June |
| East China | 65% | May-September |
| North China | 42% | July-August |
3. Ranking of the latest solutions
According to the statistics of practical cases across the entire network in the past 10 days, the TOP5 effective solutions are:
| method | efficient | Cost | persistence |
|---|---|---|---|
| Special alkaline remover | 92% | in | 3-5 years |
| Epoxy resin seal | 88% | high | More than 8 years |
| Acetic acid neutralization method | 76% | low | 1-2 years |
| Waterproof coating redone | 95% | higher | 10 years |
| Diatom mud covering | 82% | Middle to high | 5-7 years |
4. Step-by-step processing guide (2023 latest version)
1.diagnostic stage:
• Test with pH test paper (normal value should be <8.5)
• Observe the crystal morphology (needle-shaped crystals require professional treatment)
2.Emergency treatment:
• Wipe with 5% oxalic acid solution (limited to small area)
• Turn on the dehumidifier immediately (maintain humidity <60%)
3.Radical solution:
• Removal to the base (depth ≥ 3mm)
• Apply alkali-resistant primer (Nippon Paint and Dulux professional models are recommended)
• Do a closed water test (no leakage for 48 hours)
5. Hot search list of preventive measures
The top 5 prevention methods that have attracted the most attention recently:
1. Do alkaline testing when accepting new homes (search volume +320%)
2. Use mildew-proof and water-resistant putty (Tik Tok tutorial has over 10 million views)
3. Install a wall respirator (top 3 in Xiaohongshu’s grass planting volume)
4. Apply protective coating every year before the rainy season (Baidu Index rose 215%)
5. Choose new materials such as microcement (top of Zhihu’s professional recommendation list)
6. Special reminder from experts
According to the latest tips from the China Building Decoration Association:
• Starting from 2023, new residential buildings must comply with the "JGJ/T 304-2023" alkali prevention standards
• If you deal with an area of more than 2㎡ by yourself, you need to report the property
• Be careful with strong acid cleaning (may corrode steel bars)
Through the above structured solutions, combined with current hot topics, we hope to help you effectively solve the problem of alkali reversion on the wall. It is recommended to choose a suitable treatment plan according to the specific situation. In serious cases, be sure to consult a professional agency.
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