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
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
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 <7.0%
45m >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.
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: <6
Moisture Content: <1%
Activity Index at 7 days: > 105%
Application & Benefits of Microsilica (Silica fume):
In concrete:
The micro silica fume powder can be well filled in the cement particle space and make the slurry denser, mainly in the following:
Increase strength
Increase the density
Frost resistance
Early strength
Anti abrasion and anti-cavitation resistance
In Refractories:
Microsilica powder is widely used in the refractory industry. It has an important effect on the improvement of the amorphous refractory.
The production of amorphous and shaped refractory products as additives makes the strength and high temperature performance greatly improved.
Other Application:
Elastomers/Polymers
