石膏粉一般用來做基層處理的，比如填平縫隙、陰陽角調直、毛坯房墻面一遍膩子找平等。用做膩子進行墻面找平時，一般并不是直接使用石膏粉的，里面也會加入滑石粉，否則施工會不太方便了。下面來介紹濟南石膏粉的特性及存儲事項，

Gypsum powder is generally used for base course treatment, such as filling the gap, straightening the internal and external corners, and leveling the blank room wall with putty. Generally, gypsum powder is not directly used as putty for wall leveling, and talcum powder will also be added inside, otherwise the construction will be inconvenient. The following describes the characteristics and storage of Jinan gypsum powder,

石膏粉的特性

Characteristics of gypsum powder

石膏粉是制作石膏線的主要原料，一般為白色粉狀，質量好的石膏粉，白度要在96%以上，則制作出的成品強度也大，質量略差的石膏粉。

Gypsum powder is the main raw material for making gypsum line, which is generally white powder. If the whiteness of gypsum powder with good quality is more than 96%, the finished product will also have high strength and slightly poor quality.

從外觀去看也有灰色和淡紅黃色等結晶體，屬于單斜晶系，其主要成分是硫酸鈣，按其中結晶水的多少又分為二水石膏和無水石膏，陶瓷工業制模生產應用一般為二水石膏，就是利用二水石膏經過180攝氏度左右的低溫煅燒失去部分結晶水后成為干粉狀，又可吸收水而硬化的特點。

Seen from the appearance, there are also grey and reddish yellow crystals, which belong to monoclinic system. Its main component is calcium sulfate. According to the amount of crystal water, it can be divided into dihydrate gypsum and anhydrite. The production and application of ceramic industry mold is generally dihydrate gypsum, which is characterized by that dihydrate gypsum becomes dry powder after it is calcined at a low temperature of about 180 degrees Celsius and loses part of the crystal water, and can also absorb water to harden.

除天然石膏外，還有人工合成石膏。一般石膏調水攪拌均勻的凝固時間為2~3分鐘，發熱反應為5~8分鐘，冷卻后即成結實堅固的物體。吸水率是石膏模型一個重要的參數，它直接影響注漿時的成坯速度。

In addition to natural gypsum, there are also synthetic gypsum. Generally, the setting time of gypsum is 2~3 minutes when it is mixed with water, and the heating reaction is 5~8 minutes. After cooling, it becomes a solid object. Water absorption is an important parameter of gypsum model, which directly affects the casting speed during grouting.

石膏粉的存儲

Storage of gypsum powder

石膏粉的儲存是非常重要，是由于石膏粉易吸潮，會影響以后使用時的凝結硬化性能和強度，長期儲存也會降低強度，因此建筑石膏粉儲運是須防潮，儲存時間不得過長，一般不超過三個月。

The storage of gypsum powder is very important, because gypsum powder is easy to absorb moisture, which will affect the setting and hardening performance and strength in future use. Long term storage will also reduce the strength. Therefore, the storage and transportation of building gypsum powder must be moisture-proof, and the storage time should not be too long, generally not more than three months.

石膏粉平時要放置在干燥的地方，使用時不要濺到水或石膏渣，石膏袋子要干凈，嚴防使用過的石膏殘渣或其它雜物混入袋中。

Gypsum powder shall be placed in a dry place at ordinary times, and shall not be splashed with water or gypsum residue during use. The gypsum bag shall be clean, and used gypsum residue or other sundries shall be strictly prevented from mixing into the bag.

此外石膏粉調制的石膏砂漿具有良好的和易性，上墻后附著力強，收光容易，操作簡便，隨伴隨用，節省工料，施工后罩面致密光滑，早期強度高，可克服傳統工藝的質量通病。您有什么需求就來我們網站http://www.netjobs.cc咨詢吧！

In addition, the gypsum mortar made of gypsum powder has good workability, strong adhesion after being mounted on the wall, easy light collection, simple operation, and can save labor and materials with accompanying use. After construction, the overlay is dense and smooth, with high early strength, which can overcome the common quality defects of traditional technology. Come to our website if you have any needs http://www.netjobs.cc Consult!