Hengcheng's micro pearl silica is made from sulfuric acid and sodium silicate. By using the pressure spray drying technology, it provides our customers with non- dusting micro pearl silica that is denser than powder and easier to handle. We offer several packaging options. These include paper bags and big bags, on plastic or wood pallets, and in bulk in specially lined containers. This enables us to deliver anywhere in the world and according to customer needs and preferences.
Micro Silica Sand: 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.
Features Of Micro Silica (Silica Fume) Micro Silica also known as Silica fume. It is a by product of producing silicon metal or ferrosilicon alloys in smelter using electric arc furnaces. It is a grey coloured powder, pozzolanic in nature. Applications Concrete Industry Refractory Rubber Industry Anti caking agent Pellet Binder
Microsilica (silica fume) is a by-product of silicon metal or ferrosilicon industries, is an amorphous silicon dioxide SiO2. This product reacts chemically with the calcium hydroxide in the cement paste which yields a calcium silicate hydrate gel that significantly enhances strength and durability. The super fine microsilica fills the voids between cement particles creating a very dense, less permeable concrete. Physical characteristics: Color: gray or gray white powder Bulk density: 320-700 kg/m3 Chemical composition: Items SiO2 Al2O3 Fe2O3 MgO CaO Na2O Moisture Content 75-98% 1.0-0.2% 0.9-0.3% 0.7-0.1% 0.3-0.1% 1.3-0.2% Fineness: the fineness of the silica fume is less than 1 1/4m, and the average particle size is 0.1 0.3 1/4m, and the specific surface area is 20 - 28 m2/g. The fineness and specific surface area are about 80-100 times of cement and 50-70 times of fly ash. Maxtech Micro Silica supplies will be as per QCS 2014 (ASTM C1240): SiO2: >/= 92% LOI:
Supplier: Talc, mica, fly ash, bauxite, calcined bauxite, potash feldspar, quartz, sand, silica sand, micro silica, silica fume, bentonite, bleaching clay, ball clay, ethyl acetate
Precipitated Silica
Precipitated Silica
Precipitated Silica
Supplier: Garnet sand, silica sand, quartz sand, gbfs, ggbfs, fly ash, stone aggregates, basalt, gabbro, talc, dolomite, micro silica, silica fume, manganese ore, manganese oxide, manganese dioxide, manganese sulphate, lime stone, gypsum, salt, bauxite, bentonite, kaolin ore, calcined china clay, washed kaolin, industrial salt, table salt, raw salt, washed salt, salt tablet, iodised salt, free flow salt, wood pellets, blast furnace slag, copper slag
Services: Manufacturer, processor, packaging and trading
Buyer: Bitumen, sulphur, glycerine, pao, pad, palm kernel cake
Supplier: Talc powder, calcium carbonate, quick lime, china clay, precipitated silica
