With the promotion of people’s aesthetic taste, the figure of stone has appeared more and more in the building decoration materials. Of all kinds of stones, marble is a very popular one. Marble is so popular for a number of reasons. For example, it is elegant and durable. Marble is formed after a long time of natural aging, the organizational structure is even, not easily deformed, and high hardness, strong wear resistance, so it is not prone to scratches. Then, what are the main constituents of marble and what are the characteristics and uses of marble? Let’s go and have a look.
The principal component of marble
1, also known as marble marble, is recrystallized limestone is the main component of CaCO?. Limestone softens at high temperatures and pressures and crystallizes to form marble when minerals change. The main component is calcium and dolomite, many colors, usually have a clear pattern, a lot of mineral particles. Mohs hardness between 2.5 to 5. As marble generally contains impurities, and calcium carbonate in the atmosphere by carbon dioxide, carbide, water vapor, but also easy to weathering and corrosion, and make the surface soon lose luster.
2, marble generally relatively soft physical properties, this is relative to granite. In interior decoration, the TV table, window sill, indoor ground and so on are suitable for marble. Marble is a commodity name, not a petrological definition. Marble is a kind of natural building decorative stone, usually refers to the decorative function, can be processed into construction stone or handicraft of metamorphic or metamorphic carbonate rock. It is named after Cangshan Yunnan, Dali, China, which is made of stone with brilliant colors and patterns. Marble generally refers to marble, limestone, dolomite, and carbonate rocks formed by different alteration of skarn and marble.
Marble is divided into three categories:
Dolomite: MAGNESITE (calcium magnesium carbonate) content more than 40%
Forsterite: MAGNESITE (calcium magnesium carbonate) between 5% and 40%.
Calcite: MAGNESITE (calcium magnesium carbonate) content less than 5%
Characteristics of ore raw material
(1) process classification
Marble is a kind of rock represented by marble, including carbonate rocks and related metamorphic rocks. It is generally softer than granite.
Common rocks are marble, limestone, dolomite, skarn and so on. The marble varieties division, naming principle is not the same, some named origin and color, such as the Dandong green and Tieling red; some named patterns and colors, such as snow white, Ye Qing; some named image patterns, such as autumn, waves; some traditional names, such as white jade, jade and other chinese. Therefore, because of different origin often appear similar synonyms or different rock name phenomenon.
Marble produced in our country in accordance with its basic color polishing surface, can be divided into white, yellow, green, gray, red, coffee, black seven series. Each series according to the polishing surface color and pattern characteristics can be divided into several sub categories, such as: white, yellow, green, Hangzhou Dandong rosin ash etc..
The patterns of marble and the thickness of crystalline grain are varied, including landscape type, cloud and mist type, pattern type (thread, willow leaf, image, paleontology, etc.), snowflake type, etc.. Modern architecture is colorful and ever-changing, so it requires many varieties and colors for decorative marble, which can be used in different parts of the building. General requirements for monochromatic marble uniform color;
The colored marble demands gradual transition of patterns and shades; the patterned marble requires clear patterns, bright colors and regular patterns. In short, the flower color is beautiful, convenient for large area splicing decoration, and can supply the same color as well.
(two) mineral composition and main characteristics
The mineral composition and ore characteristics of marble are directly related to the performance and decorative effect of its products.
(three) chemical composition and physical properties
The chemical composition of the marble can be used, generally do not play a major role, but can directly and indirectly affect the lithology, physical and chemical properties of marble, processability, weathering resistance, corrosion resistance evaluation has certain significance.
The physical property of marble is an important index to judge its machinability, and it is also an important textual research on its performance and scope of application.
Characteristics and uses of marble
Marble generally refers to marble, limestone, dolomite, and carbonate rocks formed by different alteration of skarn and marble.
The main consolidation component of marble is calcium, and calcium carbonate is the natural consolidation component of marble. Certain viscous minerals are doped into calcium during the formation of stones, resulting in brilliant colors. Viscous minerals are also stains for granite and other natural stones.
Marble characteristics and advantages are, no deformation, high hardness, long service life, no scratches, no magnetization, and so on. Rock has been formed for a long time, and its structure is uniform and easily deformed. After proper stone maintenance, the service life can be prolonged. Marble also retains its original physical properties at room temperature.
Marble has a beautiful color, pattern, physical and chemical properties of higher compressive strength and good, resources are widely distributed, easy processing, with the development of economy, marble constantly expanding the scope of application, increasing consumption, plays an important role in people’s life. Especially in the past 10 years marble large-scale mining, industrial processing, international trade, the decorative sheet marble mass into the architectural decoration industry, not only for luxurious public building, also entered the family decoration. Marble is mainly used for processing all kinds of shaped materials, plates, as the walls of buildings, floors, platforms and columns, is precious materials inlaid furniture. Material used in monumental structures such as monuments, towers, statues, etc.. Marble can also be carved into arts and crafts, stationery, lamps, utensils and other practical works of art. Marble texture of soft, beautiful, solemn, elegant style, a large variety of colors, decorative luxury building is an ideal material, but also the traditional materials of art engraving. Some marble (including limestone, dolomite, marble, etc.) can also be used as alkali resistant materials. On the marble mining, processing produced in the process of gravel, leftover materials are also used in artificial stone, terrazzo, rice, flour production, can be used for coatings, plastics and rubber industries such as packing.
The natural marble is gorgeous and solemn. At present, no artificial material can substitute for the effect of natural marble. Its composition difference is big, causes its density, the color, the processing pattern and so on the difference is big. So the range of use is different. Generally used in high-grade places on the ground, walls, furniture decoration.
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