25Apr 2023 by admin
Silica fume for cementitious applications

Silica fume for cementitious applications

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Silica fume, also known as microsilica, is a byproduct of the silicon metal and ferrosilicon alloy production process. It consists of extremely fine spherical particles, which are around 100 times smaller than cement particles. Due to its unique physical and chemical properties, silica fume has become a valuable supplementary cementitious…
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15Feb 2023 by admin
Micro Silica Fume Percentage in Concrete

Micro Silica Fume Percentage in Concrete

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The higher the content of SiO2, the higher performance of micro silica. Generally, the silica fume SiO2 is required to be more than 85%, and the carbon in the silica fume will absorb some air-entraining agent in the concrete, so the loss on ignition is required to be less than…
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09Feb 2023 by admin
Silica Fume Market

Silica Fume Market

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The application research and recycling of micro silica fume in China started relatively late, and most ferrosilicon production enterprises did not pay enough attention to recover silica fume. Although some large enterprises recovered micro silica powder, they did not find its value, and most of the recovered micro silica silicon…
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08Feb 2023 by admin
Can Be Used Silica Fume Replacement of Cement?

Can Be Used Silica Fume Replacement of Cement?

Blogs
After replacing cement with silica fume, its function is similar to fly ash, which can improve the workability of concrete mixture, reduce the heat of hydration, improve the corrosion resistance, frost resistance and impermeability of concrete, and inhibit the alkali-aggregate reaction, and its effect is much better than that of…
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08Feb 2023 by admin
Specific Gravity of Micro Silica

Specific Gravity of Micro Silica

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The specific gravity of micro silica is 2.1 g/cm3~2.5 g/cm3, and the loose bulk density is 200 kg/m3~300 kg/m3. The specific gravity of silica fume is about 2/3 of that of cement, but its density is only about 1/6 of that of cement. The main quality index of micro silica…
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08Feb 2023 by admin
Micro Silica Chemical Composition

Micro Silica Chemical Composition

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Basic physical properties of micro silica: ◇ Existing form: amorphous ultra-fine (amorphous) powder ◇ Typical color: gray (the natural state is grayish white, and the color gradually deepens with the increase of density) ◇ Specific surface area: 15~28 m2/g ◇ Loose bulk density: 200~350 kg/m3 ◇ Activity index: ≥ 85%…
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30Sep 2022 by admin
What is code for silica fume?

What is code for silica fume?

Blogs
Name: Silica fume CAS: 69012-64-2 EINECS: 273-761-1 Molecular formula: C7H9N5S2 Molecular weight: 227.3099 The main chemical composition of silica fume is: SiO2: 85-96% Al2O3 Fe2O3 MgO CaO NaO Fineness of silica fume: the fineness of silica fume less than 1 µ m accounts for more than 80%, the average particle size…
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29Sep 2022 by admin
Building Concrete Silica Fume Formula

Building Concrete Silica Fume Formula

Blogs
Application scope of micro silica fume (silica fume) for building concrete 1. For water conservancy and hydropower projects: after adding micro silica fume to the anti-seepage and anti abrasion parts, the anti-seepage, anti cracking, anti abrasion and anti cavitation properties can be greatly improved, and the service life of buildings…
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