The artificial marble is made of natural marble or granite gravel, which is made of cement, gypsum and unsaturated polyester resin as a binder, and is formed by stirring, grinding and polishing. Natural marble is a metamorphic rock formed by the high temperature and high pressure of the original rock in the earth's crust. It belongs to medium hard stone and is mainly composed of calcite, limestone, serpentine and dolomite. Its main component is calcium carbonate, accounting for more than 50%. Others include magnesium carbonate, calcium oxide, manganese oxide, and silicon dioxide. Since marble generally contains impurities, and calcium carbonate is exposed to carbon dioxide, carbides, and moisture in the atmosphere, it is also easily weathered and eroded, and the surface quickly loses its luster. Therefore, a small number of relatively stable and durable varieties such as white marble and Ai Yeqing can be used outdoors, and Other varieties are not suitable for outdoor use, and are generally only used for interior decorative surfaces. The main varieties are: cloud gray marble, colored marble and so on. First, natural marble is mainly divided into two types in daily use: marble and granite. Generally speaking, any texture, called marble, is mainly called granite. This is in a broad sense. In a narrow sense, marble refers to the stone produced in Dali, Yunnan. In fact, there are not a few stones in the whole country that are out of Dali. The two can also be distinguished from geological concepts. Granite is an igneous rock, also called acid crystalline plutonic rock. It is the most widely distributed rock in igneous rock. It consists of feldspar, quartz and mica. Its composition is mainly silica, accounting for 65%-75%. Hard and dense. The so-called igneous rock is a rock formed by condensing and crystallizing underground magma or volcanic lava. The content of silica in igneous rocks, the nature of feldspar and its content determine the properties of stone. When the content of silica is more than 65%, it belongs to acidic rock. In this rock, when basic minerals such as feldspar, plagioclase and quartz form crystals, it has a granular structure and is called granite. Marble is a metamorphic rock formed by the high temperature and high pressure of the original rock in the earth's crust. The internal force of the crust promotes the process of qualitative changes in the various types of rocks. The qualitative change refers to the change of the structure, structure and mineral composition of the original rock. The new type of rock formed by qualitative change is called metamorphic rock. Marble is mainly composed of calcite, limestone, serpentine and dolomite. Its main component is calcium carbonate, accounting for more than 50%. Others include magnesium carbonate, calcium oxide, manganese oxide, and silicon dioxide. Since marble generally contains impurities, and calcium carbonate is easily corroded and dissolved in the atmosphere by carbon dioxide, carbides and water vapor, the surface is quickly tarnished, and the general nature of marble is relatively soft, which is relative to granite. Stone. Of course, you don't have to pay attention to this, because this geological time is calculated in billions. In our lifetime, this qualitative change is a limited change. Of course, the marble and granite mentioned above are in a narrower definition in the above classification. What is said on the market now, the texture is generally metamorphic, so it is also known as marble. The spotted crystal particles are also known as granite. In fact, too detailed classification, that is the matter of geologists, for the interior decoration, almost on the line. Of course, if your stone is used outdoors, due to the harsh environment, you need to make a more detailed classification. Because the surface of natural stone has pores, it is weak in terms of stain resistance. It is usually processed on the surface of the processing plant. In interior decoration, marble countertops, window sill countertops, indoor floors, etc. are suitable for use in marble. Granite is suitable for the threshold, kitchen countertops and outdoor ground. It is best to use dark granite in the kitchen countertop. The natural stone that is currently on the market, some of which are hand-treated, will generally reveal their true faces in half a year or so. The most obvious is that the big green flowers on the market today are mostly dyed, not really big green. Another thing to note is the back mesh. There are two kinds of situations: 1. The stone itself is brittle and must be gridded, such as Spanish beige. 2. Cut corners, the thickness of these stones is thinned, the strength is not enough, so the grid is added. If the stone with a deeper color is meshed, most of them are this factor. Second, the artificial marble is made of unsaturated polyester resin as binder, combined with natural marble or inorganic powder such as calcite, dolomite, silica sand, glass powder, etc., and appropriate amount of flame retardant, color, etc. An artificial stone made by molding, vibration compression, extrusion, etc. Artificial stone is artificially researched according to the problems in actual use. It has made great progress in moisture, acid, alkali, high temperature and patchwork. Of course, artificial things naturally have man-made shortcomings, and the natural nature of artificial stone is obviously insufficient. Therefore, it is used in cabinets and the like where there are many practical requirements, and there is less emphasis on decorativeness for window sills and floors. Another factor that hinders the use of artificial stone is the human factor. Due to the large difference in the manufacturing process of artificial stone, the performance characteristics are not completely consistent. So the performance mentioned above must be the performance of the artificial stone you purchased. At present, the artificial stone imported on the market is relatively good in performance. Relatively speaking, domestically produced may only have a "blow" share. To put it simply, the imported marble allows sandpaper to be used to polish the scratches on the surface. The user's own treatment is no longer obvious, and many domestic artificial stones obviously cannot support this practice. Artificial marble is suitable for use in harsh environments such as kitchens, washrooms, etc. Because the texture is relatively too fake, it is rarely used for decorative projects in the decoration. When purchasing artificial marble, it is best to take a sample for the severity test, such as pouring soy sauce or oil, and performing abrasion tests. In summary, the choice of the kind depends on the use and personal economic ability. If the economic conditions are good, then natural marble is used. Concealed Shower Set,Shower Set,Dual Shower Head System,Rainfall Shower Combo kaiping aida sanitary ware technology co.,ltd , https://www.jmkpaidafaucets.com