Decoration materials: Building materials and products used to decorate various civil and wooden buildings to improve their function and beauty, and to protect the stability and durability of the main structure under various environmental factors. Also known as decoration materials and facing materials. Mainly include grass, wood, stone, sand, brick, tile, cement, gypsum, asbestos, lime, glass, mosaic, ceramics, paint, paper, metal, plastic, fabric, etc., and various composite products.
1. The physical properties of the material
(1) Material and quality related properties
①Density in different structural states (density, apparent density, bulk density, bulk density) ②Density and porosity (compactness, porosity) ③Filling rate and porosity (filling rate, porosity)
(2) Water-related properties of materials
① Hydrophilicity and hydrophobicity ② Water absorption and moisture absorption ③ Water resistance ④ Impermeability ⑤ Frost resistance
(3) Material and heat-related properties
① Thermal conductivity ② Heat capacity
2. Material mechanical properties
The mechanical properties of materials refer to the properties of materials that deform and resist damage under the action of external forces.
① Strength of material ② Strength grade ③ Specific strength
(2) Deformation properties of materials
① Elasticity and plasticity: Elasticity: The material deforms under the action of external force. When the external force is removed, the property that the deformation can be completely recovered is called the elasticity of the material.
Plasticity: The deformation of a material under the action of an external force. After the external force is removed, the material still maintains the properties of the shape and size after deformation, which is called the plasticity of the material.
②Brittleness and toughness
Brittleness: The property of a material without significant deformation and sudden destruction under the action of external force. Materials with this property are called brittle materials.
Toughness: The property of a material that can withstand large deformations without sudden damage under impact and vibration loads. Materials with this property are called ductile materials.
(3) Durability of materials
3. The main uses are divided into 3 categories: ground, interior wall, and exterior wall.
Commonly used are: cement mortar floor, good wear resistance, the most widely used, but it has the disadvantages of poor sound insulation, inelasticity, and large thermal conductivity.
The marble floor has clear and beautiful texture, and is often used in public venues such as high-end hotels.
The terrazzo floor has good abrasion resistance, bright and beautiful, and can be made into various floral patterns according to the design.
The wooden floor is flexible, with low thermal conductivity, giving people a warm and soft feeling. The parquet hardwood floor is also paved with mat patterns and herringbone patterns, which is durable and is mostly used in gymnasiums, rehearsal halls, stages, and banquet halls. For example http://www.excellentplywood.com/
New floor decoration materials include wood fiber flooring, plastic flooring, ceramic mosaic tiles and so on. Ceramic mosaic tiles are hard, acid-resistant, alkali-resistant, wear-resistant, impermeable, and easy to clean. In addition to being used as floor tiles, they can also be used as interior and exterior wall finishes.
(2) Inner wall
The traditional method is to brush lime water or wall powder, but it is easy to pollute and cannot be scrubbed by wet method. It is mostly used in general construction. Higher-level buildings often use flat-gloss blending paints, which are rich in color and not easy to pollute, but the organic solvents mixed in are volatile and pollute the atmosphere, which affects the health of construction workers.
With the development of science, organic synthetic resin raw materials are widely used in paints, which cause fundamental changes in the appearance of paint products and are called paints, becoming an important class of interior and exterior wall decoration materials. The use of paper to paste indoor walls and ceilings has a long history, but it has been replaced by plastic wallpaper and fiberglass wall coverings.
Gypsum board has the characteristics of fire prevention, sound insulation, heat insulation, light weight and high strength, and convenient construction. It is mainly used for walls and flat roofs; when used for flat roofs, holes with various patterns can be punched to improve sound absorption and decorative effects. Calcium plastic board has a good decorative effect, can heat insulation and sound insulation, and is a multifunctional board. Marble slabs and granite slabs are increasingly used to decorate high-end hotels and apartments;
As an emerging composite material, composite materials have been increasingly widely used in the fields of architectural interior decoration and furniture. Sandwich panels with PET material as the core material, composite panels with Baltek wood as the material, composite materials for construction represented by http://www.excellentplywood.com/ and aluminum-plastic panels have strong It has the advantages of designability (easy to process), low density but good strength, good corrosion resistance, good light transmission, good heat insulation, and good sound insulation performance. In addition, the application of composite materials to buildings can also help reduce the overall weight of the building, and can effectively improve the earthquake resistance level of the building.
(3) Exterior wall
Commonly used are cement mortar, chopped fake stone, water-brushed stone, glazed tile, ceramic mosaic tile, paint, white cement paste and so on.
New exterior wall decoration materials such as paint, polymer cement mortar, polypropylene fiber, asbestos cement board, inorganic cement foam insulation board, FTC self-regulating phase change energy-saving materials, glass curtain walls, aluminum alloy products, etc., are being used in some projects Adopted.
Post time: Sep-30-2021