夏季來臨，天氣炎熱，氣溫越來越高，施工現(xiàn)場墻體干燥，在使用濟(jì)南石膏粉進(jìn)行墻面抹灰找平時(shí)，出現(xiàn)抹灰石膏因失水過快表面造成結(jié)構(gòu)力差或脫粉現(xiàn)場!主要表現(xiàn)為干透之后的粉刷石膏顏色不均勻(局部發(fā)白，正常顏色應(yīng)為灰色)，用手搓出現(xiàn)掉粉。

Summer is coming, the weather is hot, the temperature is getting higher and higher, and the walls on the construction site are dry. When using Jinan gypsum powder for wall plastering and leveling, there is a problem where the plastering gypsum loses water too quickly, resulting in poor structural strength or powder detachment on the surface! The main manifestation is uneven color of the plastering gypsum after drying (local whitening, normal color should be gray), and powder peeling occurs when rubbed by hand.

問題出現(xiàn)的原因有哪些？

What are the reasons for the problem?

1、墻體過于干燥，含水率低吸水性強(qiáng)，抹灰材料上墻后水份快速被墻體吸收。

1. The wall is too dry, with low moisture content and strong water absorption. After the plastering material is applied to the wall, the water is quickly absorbed by the wall.

2、材料批刮過薄，墻體吸收水份的同時(shí)部分水份從空氣中快速揮發(fā)。

2. The material is scraped too thin, and the wall absorbs water while some of it quickly evaporates from the air.

3、攪拌不充分，沒等材料充分吸足水就進(jìn)行批刮，上墻之后的材料水分子不夠，石膏不能充分水化反應(yīng)。

3. Insufficient mixing, batch scraping without sufficient water absorption of the material, insufficient water molecules in the material after being added to the wall, and insufficient hydration reaction of the gypsum.

如何避免類似問題的發(fā)生？

How to avoid similar problems?

1、墻面找平前需進(jìn)行基層檢測，過于干燥的墻面要進(jìn)行濕水處理，可用滾筒對(duì)墻面和頂面進(jìn)行滾水。

1. Before leveling the wall, a basic level inspection is required. If the wall is too dry, wet water treatment should be carried out. A roller can be used to roll water on the wall and top surface.

2、基礎(chǔ)墻體必須使用墻固進(jìn)行界面處理，防止因?yàn)閴w疏松造成脫落現(xiàn)象。

2. The foundation wall must be treated with wall reinforcement for interface to prevent detachment caused by loose walls.

3、材料攪拌后不要馬上上墻批刮，給材料一個(gè)吸水飽和的過程，避免添加劑沒有完全溶解造成保水性不足;同時(shí)天氣炎熱可適當(dāng)多加水把材料調(diào)稀一些。

3. After mixing the materials, do not immediately scrape them onto the wall. Give the materials a process of water absorption and saturation to avoid insufficient water retention caused by incomplete dissolution of additives; At the same time, if the weather is hot, add more water to dilute the material appropriately.

4、批刮厚度不宜過薄，避免因批刮太薄造成水份加速流失。同時(shí)抹灰石膏為含砂材料，批刮過薄砂粒不能被石膏完全包裹裸露在表面，這樣更容易因受外力揉搓、打磨脫粉。建議單次批刮厚度為2~10毫米為宜。

4. The thickness of batch scraping should not be too thin to avoid accelerated water loss caused by too thin batch scraping. At the same time, plastering gypsum is made of sand containing material, and after being scraped, thin sand particles cannot be completely wrapped and exposed on the surface by gypsum, which is more likely to cause peeling due to external forces such as rubbing and polishing. It is recommended to have a single batch scraping thickness of 2-10 millimeters.

出現(xiàn)類似情況如何解決？

How to solve similar situations?

一旦出現(xiàn)脫粉情況，應(yīng)該針對(duì)具體情況造成的原因進(jìn)行處理，不要慌!

Once there is a powder removal situation, it should be handled according to the specific reasons caused by the situation, and do not panic!

1、輕微脫粉不是特別嚴(yán)重可以用噴霧器補(bǔ)水處理，石膏因脫水粉化二次遇水自然干透后強(qiáng)度仍可以上來。

1. If the slight degumming is not particularly serious, the spray can be used to replenish water, and the strength of gypsum can still come up after it is naturally dried after being dewatered and powdered for the second time.

2、可以用墻固進(jìn)行界面處理，進(jìn)行封閉加固處理。

2. Wall reinforcement can be used for interface treatment and sealing reinforcement.

夏季高溫季節(jié)粉刷石膏施工要避免問題出現(xiàn)的相關(guān)事項(xiàng)就講解到這里了，希望能夠給您好的幫助，更多事項(xiàng)就來我們網(wǎng)站http://www.netjobs.cc咨詢！

That's all for explaining the relevant issues to avoid during the hot summer season when applying gypsum. We hope to provide you with good help. For more information, please visit our website http://www.netjobs.cc consulting service