Granite is not only beautiful, durable but also very hard. In ancient times, if mining, processing equipment and technology were used, it was certainly more popular than marble.
The mining of granite is generally done by wire sawing. New processes such as dense eye-opening and flame spraying have emerged. The stones produced by the flame spraying
method are neatly cut, no dark shadows, and high production efficiency. The collected stones are roughed and called as blocks, and then manually drilled or machine sawn to
obtain blocks and plates of the required size; processed by milling machine or rotary table to form a cylindrical shape Or curved body; finally artificially smashed coarse, fine rock-like
lines, or machine grinding and polishing to make the surface crystal clear. Granites often contain other minerals, such as amphibole and mica, in a variety of colors,
including: brown, red, green, and common black. Because its crystallization process is very slow, its crystals are intertwined one by one like the Rubik's cube, so it is very hard.
It is as durable as a house, does not drop debris, is not easily scratched, and is not afraid of high temperatures. Regardless of color or light, as long as there is some common
sense of conservation, it will not fade or darken. He is almost free of contamination, and the surface gloss is high after polishing, and almost no impurities in various weathers
Granite does not pollute the environment. Synthetic materials are often accompanied by bad or even toxic by-products that need to be replaced several times during the life
of the building. Granite does not need to be replaced because it is very durable. In addition, granite is very practical, can be made into a variety of surface polishing, matt, fire,
fine grinding, waterjet treatment and sandblasting. Since granite often contains radioactive materials, it is necessary to measure the radiation level when using granite, and
then confirm its use.
Features: Granite has a compact structure, high compressive strength,
The hardness of granite is high, its Mohs hardness is about 6, and its density is between 2.63g/cm3 and 2.75g/cm3. Its compressive strength is 100-300MPa, and fine-grained granite can be as high as 300MPa or more. 10 to 30 Mpa.
Granite is often produced in the form of rock foundations, rock strains, rock blocks, etc., and is controlled by regional geodetic structures. Generally, the scale is relatively large and the distribution is relatively wide. Therefore, it is easy to mine, easy to produce large materials, and its joint development is regular. It is conducive to the mining of stone with shape rules. Granite has a high rate of desertification and can be processed in various ways. Also, granite is not easily weathered and can be used as an outdoor decorative stone. Granite has a uniform texture, although the color is mainly light, but it is also rich in red, white, yellow, green, black, purple, brown, beige, blue, etc.