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Plasterboard, also known as drywall or gypsum board, is a widely used building material that consists of a gypsum plaster core wrapped in paper or other types of material. The core of plasterboard is made of a mixture of gypsum, water, and additives, which is poured onto a continuous sheet of paper and then sandwiched between two outer layers of paper to create a panel.
Plasterboard comes in various sizes and thicknesses, and it is typically used for interior walls and ceilings. It is a popular material in construction because it is easy to work with, relatively lightweight, and can be cut to fit any shape or size. Additionally, it has excellent fire-resistant properties and provides good sound insulation.
The installation of plasterboard involves screwing or nailing the panels to the framing of the walls or ceilings. The joints between the panels are then taped and filled with joint compound to create a smooth surface for painting or wallpapering.
Plasterboard is widely used in residential and commercial construction, and it is an essential material in the building industry. It is an efficient and cost-effective way to create a durable and smooth finish on interior walls and ceilings.
1. Fire resistance
Since gypsum itself is a fire resistant material, gypsum board can also be fire resistant for four hours. The reason for this is the presence of water in the composition of gypsum. When it comes in contact with fire, the water begins to evaporate. This helps the drywall to form a protective layer that prevents the fire from spreading for a certain period of time.
2. Non-combustible
When gypsum board comes in contact with fire, a process called calcination begins. During the calcination process, the board dries out and forms an additional layer. This makes the wall non-combustible within a few hours and always keeps the wall at room temperature.
3.Damp Proof / Waterproof Gypsum Board
The green type consists mainly of construction gypsum with the appropriate amount of reinforcing fibers and water-resistant additives.
Suitable for damp and semi-open rooms, with a surface suitable for tiling.
Field of application: kitchen, bathroom, laundry room, garage, bathroom, laundry room, wet environment, etc.
4. Acoustic properties
Gypsum plasterboards have an inherent level of sound insulation. They are more effective compared to conventional walls of the same thickness. This is because they contain sound breaks and reduce reverberation.
5. Thermal performance
Gypsum boards contain crystallization water. They also contain
voids that allow the correct balance between moisture and
temperature to be achieved. If fiberglass is added, it will prevent
fire as the fiberglass maintains the integrity of the board. The
additional insulation acts as a vapor barrier and helps control
moisture in the room.
Item | Standard Value | Test Value | ||||
Density (kg/m²) | — | Thickness | Regular | Fire Resistant | Water Resistant | |
| ≯ 9.5kg/m² | 9.5mm | 7.5 | 7.5 | 7.5 | ||
| ≯ 12.0kg/m² | 12mm | 9.5 | 9.5 | 11.5 | ||
Flexural Strength(N) | Parallel | ≮ 360 | 9.5mm | 560 | ||
| ≮ 500 | 12mm | 700 | ||||
| Cross | ≮ 140 | 9.5mm | 180 | |||
| ≮ 160 | 12mm | 240 | ||||
| Surface Paper Sticking theCore Material | Unexposed | Unexposed | ||||
| Stability with Fire (Min) | Fire Resistant | ≮ 20 | / | / | ＞20 | / |
| Water Absorption (%) | Water Resistant | ≮ 10 | 9.5mm | / | / | 6.8 |
12mm | / | / | 4.2 | |||
| Radioactivity | Internal | IRa≤1.0 | ＜1.0 | |||
| External | Ir≤1.3 | ＜1.0 | ||||
| Note | Executive Standard : GB/T 9775-2008 | |||||
Common specifications: 9mm,9.5mm,12mm
Ordinary gypsum board sound insulation wall composed of double-layer separation type and hollow strip board has the same effect asthe brick wall of 24cm
Walls: Gypsum board is commonly used for interior wall partitions and decoration, allowing for cutting and splicing as needed to quickly create a smooth wall surface.
Ceilings: Used as a ceiling material, gypsum board can hide wires, pipes, and other components, while providing thermal and sound insulation, enhancing indoor comfort.
Ceiling Decoration: Gypsum board can be crafted into various ceiling designs, aesthetically pleasing and can also hide lighting fixtures, adding depth and beauty to the space.
Furniture: Gypsum board can be used to make various furniture pieces such as bookshelves, wardrobes, etc. with appropriate design and decoration, it can become a highlight of interior decoration.
Decoration: With its good processing performance, gypsum board can be decorated through carving, hot stamping, and other techniques, adding artistic flair to interior decoration.
Overall, gypsum board has a wide range of applications in construction and interior decoration, meeting the needs of different decorating scenarios.
