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Global Egypt
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Product Description:
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Is a byproduct in the reduction of high-purity quartz with coke in electric arc furnaces in the production of silicon and ferrosilicon. It consists primarily of amorphous (non-crystalline) silicon dioxide (SiO2). Silica fume varies in color from white to pale gray to black.
Because of its chemical and physical properties, it is a very reactive pozzolan. As the particles are amorphous silica (+ 85 % SiO2) with an extremely high surface area, they react chemically with the calcium hydroxide from the cement to form calcium silicate hydrates or CSH. Increase CSH leads to very high strength and very durable cement.

Applications of silica fume include:

1) cement and concrete applications (one of our products).
2) refractory
3) fertilizer
4) rubber and plastic fillers
5) oil well cementing (one of our products).

Chemical specifications of our Microsilica according to ASTM standards:
Constituents % in GIC sample as per test certificate

Sio2: 92.16
Free si content: 0.018
Free calcium oxide: 0.52
Cl: 0.08
SO3: 0.73
MgO: 0.93
Loss on ignition: 2.48
Alkali content: 0.52

Physical Specifications:

Moisture %: 0.54
Specific surface area m2/g :27.18
Grain size, mm: 0.068
% retained on 45 sieve:7.55
Other Details:

Offered by: Global Egypt (View Showroom, Create your own Showroom)
Place of Origin: Egypt (More Products from Egypt)
Stock Location: Egypt
Quantity: 1000 Ton
Packaging: 1/1.5 Ton 2 spout jumbo bags
Price: Not Specified
Product Seller Classification: Mineral Products - Ores, Slag & Ash
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