Cobblestone

The cobblestone, as a pure natural stone, is taken from the sand and stone mountains of the ancient river bed after the crustal movement of tens of millions of years ago. It has experienced the impact of mountain torrents and continuous extrusion and friction during the process of running water. In the course of the evolution of the vicissitudes of thousands of years, the movement of their waves and punching water has lost the irregularities of the rubbing and rubbing of gravel, and silenced in the underground for millions of years. The main chemical composition of pebble is silica, followed by a small amount of iron oxide and trace elements such as manganese, copper, aluminum, magnesium and other compounds. They have different pigments, such as red red for iron, blue for copper, purple for manganese, yellow semitransparent as silica gel pulp, jadeite color containing green minerals and so on. So that pebbles appear black, white, yellow, red, dark green, gray and so on.
The use of cobbles:
The cobbles are widely used in public buildings, villas, courtyard buildings, paved pavements, Park rockery, potted landscape filling materials, garden art and other advanced superstructures. It not only promotes the ancient culture of the East, but also reflects the classical and elegant western style of art.
Cobblestones also provide high-quality materials for water purification, sewage treatment, electricity, gardens and other projects. It also provides raw and auxiliary materials for ceramics, precision casting, paper making, spray grinding, chemical industry, monocrystalline silicon, national defense and so on.
Physical parameters of cobbles: Material: more than 95% of silica (SiO2).
Performance parameters: surface finish 98%, compressive strength of 600 Kg/M2 or more.
On the distribution of cobbles:
The main cobblestone origin of the country is from the Lingshou area of Hebei. The front area of the Taihang Mountains is rich in resources and most of them are deposited. In addition, the pebble resources in the rest of the region are abundant, and the pebble resources in the North including Shijiazhuang and Lingshou are all characteristic and rich in variety. Among them, Shijiazhuang and Lingshou's Pebble resources are relatively well preserved because of historical reasons. There are many large pebbles in the southwest, which are large and odd in shape. They are especially suitable for geomantic stones or cultural stones of landmark buildings.