石膏粉一般用来做基层处理的，比如填平缝隙、阴阳角调直、毛坯房墙面一遍腻子找平等。用做腻子进行墙面找平时，一般并不是直接使用石膏粉的，里面也会加入滑石粉，否则施工会不太方便了。下面来介绍济南石膏粉的特性及存储事项，

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

石膏粉是制作石膏线的主要原料，一般为白色粉状，质量好的石膏粉，白度要在96%以上，则制作出的成品强度也大，质量略差的石膏粉。

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.

从外观去看也有灰色和淡红黄色等结晶体，属于单斜晶系，其主要成分是硫酸钙，按其中结晶水的多少又分为二水石膏和无水石膏，陶瓷工业制模生产应用一般为二水石膏，就是利用二水石膏经过180摄氏度左右的低温煅烧失去部分结晶水后成为干粉状，又可吸收水而硬化的特点。

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，还有人工合成石膏。一般石膏调水搅拌均匀的凝固时间为2~3分钟，发热反应为5~8分钟，冷却后即成结实坚固的物体。吸水率是石膏模型一个重要的参数，它直接影响注浆时的成坯速度。

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.

石膏粉的存储

Storage of gypsum powder

石膏粉的储存是非常重要，是由于石膏粉易吸潮，会影响以后使用时的凝结硬化性能和强度，长期储存也会降低强度，因此建筑石膏粉储运是须防潮，储存时间不得过长，一般不超过三个月。

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.

石膏粉平时要放置在干燥的地方，使用时不要溅到水或石膏渣，石膏袋子要干净，严防使用过的石膏残渣或其它杂物混入袋中。

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.

此外石膏粉调制的石膏砂浆具有良好的和易性，上墙后附着力强，收光容易，操作简便，随伴随用，节省工料，施工后罩面致密光滑，早期强度高，可克服传统工艺的质量通病。您有什么需求就来我们网站//www.gochiism.com咨询吧！

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 //www.gochiism.com Consult!