比较常见的石膏粉有天然石膏、脱硫石膏粉、半水石膏、磷石膏4种。那么这4种石膏粉有哪些相同及不同之处呢？下面济南石膏粉厂家为您分析一番：

The common gypsum powder includes natural gypsum, desulfurized gypsum powder, hemihydrate gypsum and phosphogypsum. So what are the similarities and differences between these four types of gypsum powder? Below, Jinan gypsum powder manufacturer will analyze for you:

一、4种石膏粉的相同之处

1、 Similarities between 4 types of gypsum powder

这4种石膏粉其原料成分大多有SO?、Al?O?、Fe?O?、CaO、MgO和K?O等成分。另外，这几种石膏粉首要矿产相、转化后的五种形态、七种变体物化功能相同；水化动力学和凝集特征根本相同；而且均没有放射性，不会损坏人体健康。

These four types of gypsum powder mostly contain SO Al? O?、 Fe? O?、 CaO, MgO, and K? Ingredients such as O. In addition, these gypsum powders have the same primary mineral phase, five transformed forms, and seven variants in terms of physicochemical functions; The hydration kinetics and coagulation characteristics are fundamentally the same; And there is no radiation, which will not damage human health.

4种石膏粉的相同及不同之处

Similarities and Differences of Four Kinds of Gypsum Powder

二、4种石膏粉的不同之处

2、 Differences between the 4 types of gypsum powder

1、原始物理状态不同

1. The original physical state is different

天然石膏是粘合在一起的块状；但脱硫石膏是以单独的结晶颗粒存在。另外脱硫石膏与石膏之间，易磨性相差比较大。比如天然石膏经过粉磨后的粗颗粒大多是杂质；而脱硫石膏颗粒比较多的则为石膏，细颗粒多为杂质，特征与天然石膏相反。

Natural gypsum is a block that is bonded together; But desulfurization gypsum exists as separate crystalline particles. In addition, there is a significant difference in grindability between desulfurization gypsum and gypsum. For example, the coarse particles of natural gypsum after grinding are mostly impurities; The gypsum with more desulfurization particles is gypsum, and the fine particles are mostly impurities, with opposite characteristics to natural gypsum.

2、含量不同，杂质不同

2. Different contents and impurities

天然石膏中，含量较多的是K?O，约占44%左右；脱硫石膏粉中含量较多的是Al?O?，约占45%；磷石膏粉中含量较多的是SO?，约占41%。另外，脱硫石膏粉与天然石膏粉在杂质成分上也有所差异，进而导致脱水特性、易磨性，煅烧之后的熟石膏粉在流变功能上皆有所不同。

What is the higher content of K in natural gypsum? O. About 44%; Is Al the most abundant component in desulfurization gypsum powder? O?， About 45%; The content of SO? In phosphogypsum powder is high?, About 41%. In addition, there are differences in impurity composition between desulfurization gypsum powder and natural gypsum powder, which leads to dehydration characteristics, grindability, and differences in rheological function of calcined gypsum powder.

此外要注意关于石膏粉施工墙面会出现开裂问题，这是因为材料不合格，开槽修补、工艺不到位等因素导致。可以通过控制原材料质量，使用更加成熟品牌的石膏砂浆，且材料要经抽样、送检、现场打样合格后才能使用，不同品种石膏不得混用。

In addition, attention should be paid to the cracking problem of gypsum powder construction walls, which is caused by factors such as unqualified materials, slot repair, and inadequate workmanship. By controlling the quality of raw materials, more mature brands of gypsum mortar can be used, and the materials can only be used after passing sampling, inspection, and on-site sampling. Different types of gypsum cannot be mixed.

在施工时应严格按照要求进行施工，单次批档厚度控制要合适，室内风不宜太大以免导致石膏表层水分蒸发过快。如何修补呢？粉刷层未干时在其表面薄薄满批一层即可恢复；粉刷层已干时，洒水湿润后再批，不会再出现裂缝。

During construction, the requirements should be strictly followed, and the thickness of each batch should be controlled appropriately. The indoor air should not be too strong to avoid rapid evaporation of moisture on the gypsum surface. How to fix it? When the paint layer is not dry, it can be restored by applying a thin and full layer on its surface; When the paint layer is dry, spray water to moisten it before applying, and there will be no more cracks.

以上就是4种石膏粉的相同及不同之处的介绍，希望能够帮助到您，您对此还有什么问题就来我们网站//www.gochiism.com咨询了解吧！

The above is an introduction to the similarities and differences of the four types of gypsum powder. We hope it can help you. If you have any further questions about this, please come to our website //www.gochiism.com Consult and understand!