At present, the use of stone is mainly used for decoration. Compared with other decoration materials, the biggest difference is that stone is a natural mineral, which is unique in many aspects such as color, texture, construction and material acquisition. The conditions; therefore, there are also applications in the selection. Overall, stone selection should be considered from the following aspects:
(1) Consideration of budgetary costs
Stone is a natural ore. Different stone materials often have significant differences in price due to their quality, quantity, mining area, etc. Therefore, when the owners and designers choose the initial cost, they should A considerable degree of mastery.
(B), the expression of aesthetics
The color, pattern and texture of the stone are subjectively selected in the selection. They are often different due to the preferences of the owner and the designer. However, if the natural stone has a deeper understanding, the expression of the design artist will be More outstanding and flexible. There are three types of ore formation: igneous rock, sedimentary rock and metamorphic rock. The most commonly used building stone is mainly marble (metamorphic rock) and granite (igneous rock); in general, marble stone has more Rich in color and pattern, the texture is mainly smooth and soft, while the granite has less change in color and pattern, but it has more flexible performance in texture. In addition, granite is in the whole. The feeling is more solemn and classical.
(3) Mastering the quality of stone
1. Uniform and complete material:
Straight cracks, black spots and chromatic aberrations should be avoided as much as possible.
2. Stone composition:
(1) Avoid harmful substances such as iron sulfide, iron oxide, salt, carbon and clay in the stone.
(2) Avoid the radiation content of stone.
(3) Avoid minerals containing excessive thermal expansion coefficient, thermal conductivity and electrical conductivity in the stone to avoid the risk of cracks, heat conduction and conduction.
(4) Durability considerations
When using stone as the decoration material, it is generally expected that the stone can have the same vitality as the structure, especially when it is used as the exterior wall and the floor decoration, the durability is more important, because the stone with good durability can not only guarantee the building forever. The appearance of the exterior can ensure the firmness and safety of the stone, so as to avoid falling behind and hurting pedestrians. However, the exterior walls and floors of the building are installed in stone, which has great test for the stone itself:
1. In terms of physics:
Stone must withstand the damage of many external forces, in addition to gravity, vibration, wind, temperature changes, wear, load and so on.
2. In terms of chemistry:
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