Lightweight plastering gypsum has gradually replaced the traditional plastering materials and has been widely recognized by the construction industry. However, some owners reported that when using this new type of plastering gypsum to decorate the new house, there will be a phenomenon of wall powder falling off. What is the reason for this? Is there any way to deal with it? Now, let's have a look.

1、抹灰石膏配合比錯誤產(chǎn)生脫粉。在其施工中，如果抹灰石膏的配合比中石膏用量較低，那么就會導致石膏裹藏不住骨料，骨料偏細，比表面積隨之大，裹藏骨料的膠凝材料用量也相對增加，從而導致墻面脫粉。

1. The mix proportion of plastering gypsum is wrong, resulting in powder removal. In its construction, if the amount of gypsum in the mix proportion of plastering gypsum is low, it will lead to that the gypsum can not wrap the aggregate, the aggregate is too thin, the specific surface area will be large, and the amount of cementitious material wrapping the aggregate will also be relatively increased, resulting in wall de powdering.

輕質(zhì)抹灰石膏粉為什么會脫粉？

Why does light plastering gypsum powder take off powder?

2、錯誤的施工方法導致脫粉。在施工過程中，施工人員為了貪圖省事，節(jié)約材料，會將已經(jīng)凝固的砂漿直接兌水使用，如此也會導致墻面脫粉。

2. The wrong construction method leads to de pulverization. In the process of construction, in order to save trouble and materials, the constructors will directly mix the solidified mortar with water, which will also lead to wall de dusting.

3、輕質(zhì)抹灰石膏的凝結(jié)時間也會影響脫粉問題的產(chǎn)生。如果凝結(jié)時間過長，即便漿體保水性正常，但表面也會因為局部水分蒸發(fā)影響抹灰石膏的水化，干透后就會有粉化現(xiàn)象。

3. The setting time of light plastering gypsum will also affect the occurrence of powder removal. If the setting time is too long, even if the water retention of the slurry is normal, the hydration of plastering gypsum will be affected by local water evaporation, and there will be pulverization after drying.

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