Silica Fume For Shotcrete And Gunite Applications

Silica Fume For Shotcrete And Gunite Applications

Silica fume is a pozzolanic material that is typically used as an additive in Shotcrete and Gunite applications. It is a finely divided residue that is created as a by-product during the production of silicon metal and ferrosilicon alloys

Description

 

Products Description

 Silica fume can enhance the compressive strength, durability, and abrasion resistance of Shotcrete and Gunite, making it an ideal choice for a wide range of construction projects. It is also highly resistant to attack from acids, chlorides, and other aggressive chemicals, which makes it suitable for use in harsh environments such as marine structures and wastewater treatment facilities. Overall, the addition of silica fume to Shotcrete and Gunite has been shown to improve the performance and longevity of these applications, making them more economical and sustainable alternatives to conventional construction methods.

Specfication

 

Molecular Weight (g/mol.)

60.08 

 

Density (g/cm3)

2.2 

 

Odor

none 

 

Freezing Point (°C)

1700

 

Boiling Point (°C)

2230 

 

Color

white

 

pH (approximately 4% silica in water)

4.0

 

Knoop Hardness (1200 kgf/mm2)

 

 

Physical State

solid powder

 

Vapor Pressure (@20°C)

0.01mm

 

Solubility In Water 

insoluble

 

 

Silica Fume for Shotcrete and Gunite Applications

R-C 5

 

 

Products Description

 

1. High compressive strength: Silica fume's ultrafine particles fill in the gaps between the cement and aggregates in the concrete matrix, resulting in a denser and stronger final product.

2. Excellent durability: With its pozzolanic properties, silica fume reacts with calcium hydroxide in the concrete to form additional cementitious materials, which improves the concrete's resistance to chemical attacks, abrasion, and freeze-thaw cycles.

3. Improved workability: The addition of silica fume to the concrete mix reduces the water requirements while maintaining the same consistency, resulting in a more workable mix that can be easily sprayed or applied.

4. Reduced permeability: Due to its ability to pack the interstitial spaces in the concrete, silica fume decreases the permeability of concrete, improving its resistance to water and other environmental factors.

5. Enhanced bonding: Silica fume's fine particles improve the bond between the concrete and reinforcing steel, resulting in a more cohesive and reliable structure overall.
 

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