Limestone is widely used in chemical products and construction materials. powder and lumps .
Vietnamese Limestone Powder is one of the most popular materials for producing animal feed worldwide. It is rich in calcium content and low in metal, which makes big contribution to the development of animals. Application: Manufacturing Feed Additives For Fish, Shrimp, Layers, Broilers, Swine, Cattle. Materials: High quality Limestone, Calcium (Ca) > 38%, Ferrous (Fe2O3) < 0.05%, Magnesium Oxide (MgO) b< 0.2%, Whiteness: 90%, Brightness: 85%, Moisture: < 0.15%.
Silica sand, also known as quartz sand, is composed mainly of silicon dioxide (SiO). It is a naturally occurring mineral that is commonly used in a variety of industries due to its properties like durability, high melting point with low iron content , customization and resistance to weathering. Here are some common uses and facts about silica sand:
Common Uses:
Glass Manufacturing: Silica sand is a primary raw material in the production of glass, including container glass, flat glass, and specialty glass.
Construction: It is used in concrete, mortar, and other construction materials, as well as for sandblasting.
Foundries: Silica sand is used in foundry molds and cores for casting metal parts.
Water Filtration: The sand is used in water filtration systems because of its ability to trap contaminants.
Oil & Gas Industry: It is used in hydraulic fracturing (fracking) to prop open fractures in shale rock to extract oil and natural gas.
Sports & Leisure: Silica sand is used in products like sandboxes, golf course bunkers, and artificial turf.
Properties:
Hardness: Silica sand is known for its hardness, typically ranking around 7 on the Mohs scale, which makes it useful for many industrial applications.
Grain Size: The grain size of silica sand varies, with smaller grains being used for things like glass and larger grains being used for sandblasting or filtration.
Color: It can vary in color, from white to tan or even pink, depending on impurities and iron content.
Micro silica also known as fume, is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 mm. The main field of application is as pozzolanic for high performance concrete because of its extreme fineness and high silica.
Applications :
Silica is added to Portland cement concrete to improve its properties, in particular its compressive strength, bond strength, and abrasion resistance. These improvements stem from both the mechanical improvements resulting from addition of a very fine powder to the cement paste mix as well as from the pozzolanic reactions between the silica fume and free calcium hydroxide in the paste.
Advantages :
Addition of silica also reduces the permeability of concrete to chloride ions, which protects the reinforcing steel of concrete from corrosion, especially in chloride-rich environments such as coastal regions and those of humid continental roadways and runways (because of the use of deicing salts) and saltwater bridges.
Silica Sand * Silica Sand is a type of sand usually available in the form of quartz. It is a hard and crystalline form of mineral components. * Silica sand is the most abundant mineral with the purity more than 99.0%. It is the preferred choice of consumption for various industrial purposes.
Supplier: Gypsum rocks, gypsum powder, rock salt (industrial salt and deicing salt), food grade salt, sodium bicarbonate, limestone, white limestone (marble chips), sulphur (granular, lumps)
