Gypsum board and gypsum powder are two common gypsum products that have wide applications in the field of building materials. Although their main component is gypsum, there are certain differences in production process, material characteristics, and application fields.

1、 Production process

Gypsum board is a board made from gypsum powder through processes such as adding water, stirring, shaping, and drying. Gypsum powder is a powdered substance obtained from gypsum ore after calcination, grinding, and other treatments.

2、 Material characteristics

Density: Gypsum board has a high density and a hard texture; However, the density of gypsum powder is relatively low and it appears in powder form.

Compressive strength: Gypsum board has high compressive strength and is suitable for load-bearing structures; The compressive strength of gypsum powder is relatively low and is commonly used in the production of gypsum boards, gypsum mortar, etc.

Moisture absorption: The surface of gypsum board is relatively smooth and has poor moisture absorption; There are gaps between gypsum powder particles, which have good moisture absorption.

3、 Application field

Gypsum board is widely used in partition walls, ceilings and other parts of buildings, with functions such as lightweight, fire prevention, sound insulation, and thermal insulation. Gypsum powder can be used to make building materials such as gypsum boards, gypsum mortar, gypsum putty, and can also be used in medical, food additives, and other fields.

In summary, there are certain differences between gypsum board and gypsum powder in terms of production process, material characteristics, and application fields. When choosing to use it, it is necessary to make a reasonable choice based on specific needs and engineering characteristics.