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Silica Fumes

Our offered Silica Fume is a byproduct of producing silicon metal or ferrosilicon alloys. One of the most beneficial uses for silica fume is in concrete. Because of its chemical and physical properties, it is a very reactive pozzolan. Concrete containing silica fume can have very high strength and can be very durable. KGR Silica Fume consists primarily of amorphous (non-crystalline) silicon dioxide (SiO2). The individual particles are extremely small, approximately 1/100th the size of an average cement particle. Because of its fine particles, large surface area, and the high SiO2 content, silica fume is a very reactive pozzolan when used in concrete. The quality of silica fume is specified by ASTM C 1240.

Description

Key Features & Benefits

High Silica Content – Contains 95–98% amorphous silicon dioxide (SiO₂).

Ultra-Fine Particles – Approximately 1/100th the size of an average cement particle.

Excellent Pozzolanic Material – Improves the strength and performance of concrete.

Enhanced Durability – Produces high-strength and long-lasting concrete.

Ideal for Refractory Applications – Suitable for use in refractory products due to its physical and chemical properties.

Low Moisture Content – Ensures consistent quality and performance.

High Surface Area – Provides improved reactivity and bonding characteristics.

Reliable Industrial Material – Widely used in construction and refractory industries.

Product Specifications

Specification Details
Product Type Silica Fume
Chemical Composition Amorphous Silicon Dioxide (SiO₂)
SiO₂ Content 95–98% (Min.)
Moisture 0.5–3% (Max.)
Loss on Ignition (L.O.I.) @ 975°C 0.5–6% (Max.)
Coarse Particles (>45 Micron, 325 Mesh) 5–10%
Specific Surface Area (BET) 15–22 m²/g
Bulk Density 200–650 kg/m³
Applications Concrete and Refractory Industries

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