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:
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Constructure
Sio2 85% min H2o 2% max Loi 3% max Specific surface area(b.E.T) : 15, 000-27, 000sqm/kg Pozz. Activity :110% min Bulk density : 550-700kgs/m3; Packing : 850-900kgs/jumboo bag ; or packing as your requirement Qualify: sgs certificate Supply capacity : 1000 tons per month Payment terms: t/t or l/c Delivery time : 15 days Jumbo water aproof bag 900kgs/bag 20bags/container
Silica fume We supply the undensitied silica fume which is a by-product during melting silicon metal or ferro silicon for long-term, silica fume, also referred to as microsilica or fumed silica, is a by-product material that is used as a pozzolan. This by-product is a result of the reduction of high-purity quartz with coal in an electric arc furnace in the manufacture of silicon or ferrosilicon Customs code: 28112200 Specifications and price: Sio2 contents >85%-92% I.L 90% min Density >600kg/m3 Packing - jumbo bags 900kg/packet or by buyerf+s request. Certificate : sgs certificate or others
Silica fume We can supply the silica fume, which is a by-product during melting fused silicon or ferrosilicon for long-term. The silica fume is suitable for industrial applications, particularly in cement manufacture, it is used in concrete&morter , and also used in refractory industry. Best price in china, if you are interested in our products, please contact with us!
Guru Corporation is the Gujarat's largest manufacturer and supplier with superior market experience since last 10 years of Silica Fume.We have a good and advanced technology for this product. G-Chem is always superb product for any RMC. and also we provide Bulker facility for smooth transportation. Our all customers are always proud on us.
Silica fume, also known as microsilica, is a byproduct of the production of silicon and ferrosilicon alloys. It is an ultrafine powder consisting of spherical particles, typically about 100 times smaller than the average cement particle. This fine powder is rich in silicon dioxide (SiO) and is highly reactive when mixed with cement, making it a valuable additive in construction materials. Features of Silica fume: 1, With good insulation: due to the high purity, low impurity content, stable performance, excellent electrical insulation performance, silica fume makes the cured product has good insulation performance and arc resistance performance. 2. It can reduce the peak exothermic temperature of the curing reaction of epoxy resin, reduce the linear expansion coefficient and shrinkage rate of the cured substance. 3, Corrosion resistance: silicon powder is not easy to react with other substances, and most of the acid, alkali can not react chemically.Its particles evenly covered on the surface of the object, with strong corrosion resistance.
We can supply both densified and undensified Microsilica(Silica Fume) Sio2 85 to 97% For price, specifications and other details plz contact us.
Fumed silica is the superfine micro-nano fine chemical product , which is divided into hydrophilic type and hydrophobic type in accordance with their different surface treatments, its appearance is white powder , native particle size ranges from 5nm to 40nm, with signficant functions of thixotropy, reinforcing, thickening and filling. it is widely used in the industries of rubber , sealant, plastic , resin, paint, printing ink, papermaking, medicine, cosmetics food etc.
