Definitions and Classifications of Building Materials
In the general environment for humans’ survival, all the materials or products used in structures or buildings are called building materials which are the material foundation for all the construction engineering. The building materials discussed in this course are all the materials used in building foundations, bases, floors, walls, beams, plates, roofs and architectural decoration. There is a wide variety of building materials. They are usually classified from different angles for the sake of study, application and description. The most common classifications are based on their chemical components and functions.
1) According to the chemical components of building materials, they can be classified into inorganic materials, organic materials and composite materials, as follows:
2) According to the functions of materials, they can be divided into structural materials and functional materials: Structural Materials: mainly used as load-bearing members, such as the materials used for beams, plates and columns.
Functional Materials: mainly possessing some special functions in construction, such as waterproof, ornamental and heat-insulating functions, etc..