Stone is mainly used in the field of architectural decoration. Compared with other decoration materials, the biggest feature is that stone belongs to natural minerals, and its unique decoration in many aspects such as color, texture, line and hardness. In addition to the type and color of the stone, the price, quality and durability of the stone are also the main considerations:
I. Price: Stone belongs to natural ore, different stone due to its quality, quantity, There are also significant differences in price in terms of mining sites and processing techniques. This requires the owner and designer to select the appropriate stone according to the project budget. To do this, you should have a considerable understanding of the price of stone. Nowadays, most of the stone consumers in China have entered a misunderstanding: the stone with high price is good stone, or the imported stone is better than domestic stone.
Of course, it should be affirmed that the imported blue diamond, Indian red and other stone unique decorative, with irreplaceable decorative effects. But we should also see: domestic stone such as Dahua Green, Baoxing White, Black and White Pine, Hangjie, Yixing Coffee, China Black and Fengzhen Black are not more than imported big green, Brazilian white, black and white pine, brown net The quality of stone such as grain and black stone is poor, and even some varieties are better than imported products.
If we compare the prices of these varieties, it is not difficult to see that the imported products are 3 to 5 times that of domestic similar products. So what do our consumers do not choose these inexpensive domestic stone? As a real estate developer, we feel that the domestic stone enterprises have not yet formed an influential brand, and the Chinese people still have blind worship of foreign stone.
Second, the mastery of stone quality
1, color. In addition to avoiding the use of stone with more obvious color difference, you should also avoid the use of colored stone.
2. The composition of the stone. First, avoid using stone materials that contain excessively high levels of iron sulfide, salt, carbon, clay, etc.; secondly, avoid using stone materials that contain excessively high expansion coefficients and thermally conductive minerals.
III. Years of use and durability
Stone has a high status in decorative materials and is irreplaceably decorative. It is used on the “facade” of a building, so the owner wants the stone to have the same vitality as the building. Stone with good durability can not only ensure the aesthetic appearance of the building, but also extend the renovation period of the building. Therefore, when there is stone as the decorative material in the outer wall and the ground and the hall, the following aspects must be investigated on the stone:
1. Physical properties Stone must be able to withstand gravity, Wind, vibration, temperature changes, wear, load and many other external forces. This requires high strength of the stone, especially the stone installed in the high position.
2. Chemical properties Stones must have considerable resistance to chemical attack such as weathering, hydration, dissolution, dehydration, acidification, reduction and carbonate. To do this, the stone must be waterproof.
3. Structural strength When selecting directional stones such as slate and shale, attention must be paid to the structural strength in different directions.
4. Water absorption rate The molecular structure of the stone is relatively stable when it is mined, but when it is exposed to the atmosphere, the coordination between the minerals inside the stone occurs, such as limestone (The reaction product of sulfurous acid gas and water in the air) dissolves the surface to form calcium sulfate, which causes collapse of sandstone and the like. Therefore, when selecting stone, you should try to choose stone with uniform pore distribution, small pore size and low water absorption.
(provided by Shenyang Building Materials Network) <
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