Marble is the rock in the lithosphere forms through action of high temperature and high pressure inside the earth's crust of metamorphic rocks, the various internal force makes original rock in the earth's crust
there are other magnesium carbonate, calcium oxide, manganese oxide and silicon dioxide. Because solid surface sheets for sale is generally contains impurities, and calcium carbonate by carbon dioxide in the atmosphere, carbide, the effect of moisture, also easy to weathering and dissolution, and make the surface soon lose its luster, marble general nature is soft, it is relative to the case of granite. , of course, you don't have to listen to this, because the geological time is calculated by the billions, in our lifetime, this qualitative change is a change in the limited.
also called marble, limestone is recrystallization, main composition optimization is CaCO? 。 Limestone softening under high temperature and high pressure, and changes in mineral crystallization marble again. Main component is calcium and dolomite and a lot of color, usually with distinct patterns, there are many mineral grains. Mohs hardness in 2. Between 5 and 5. 。 Because marble is generally contains impurities, and calcium carbonate by carbon dioxide in the atmosphere, carbide, the effect of moisture, also easy to weathering and dissolution, and make the surface soon lose its luster. General nature marble is more soft, this is relative to the case of solid surface. In indoor decoration, television mesa, windowsill, indoor ground suit to use marble. is the commodity name, not the petrology definition.
marble is natural building material, a large category, generally refers to have decorative function, can be processing ChengJianZhu wall mounted bar countertop or handicraft has spoiled or not metamorphism of carbonate rocks. It is framed by the yunnan Dali point with gorgeous colour and lustre and the pattern of wall mounted bar countertop material produced by the name. Referring to marble, limestone, dolomite, marble and carbonate rocks formed by different alteration of skarn and marble, etc. Evaluation and identification method
choose good level: according to the size to allow the deviation of the allowed tolerance, flatness and Angle, and appearance quality, surface finish and other indicators, marble plate is divided into classy article, first-rate nonconforming product and three levels; plank of classification, identification mainly through instruments, measuring tool inspection to identify.
check the appearance the appearance of the different levels of marble plate is different. Because marble is a natural formation, defect is inevitable. The pros and cons of processing equipment and measuring tool at the same time is also the cause of plate defects. Some plate plate body not plump, Warp or sag) Some defective, board ( Crack, blister, discoloration, etc. ) Different specifications, board ( Such as lack of edges and corners, the plate body is not straight) And so on. According to the national standard, various grades of marble plank are allowed to have some shortcomings, but classy article less obvious.
select pattern is tonal
marble plank colorful, color diversity, decorative pattern are all the same, this is the solid surface sheets for sale plank rare charm. Basically the same color, beautiful small off color, decorative pattern is the manifestation of good varieties, otherwise it will seriously affect the adornment effect.
detection surface glossiness
marble plate surface gloss of high and low will greatly affect adornment effect. Generally high quality marble plate polished surface should have mirror luster, as can be clearly reflected. Due to the different chemical composition but different quality marble, even with the grade of products, its gloss difference will be large. The same material, of course, different levels between the plate surface gloss also can have certain differences. In addition, the strength of the marble plank, bibulous rate is also an important index to evaluate the quality of the marble.
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