We are a prominent supplier of Silica Fume for our widely spread clients. It is processed using superior grade ingredients and chemical compounds along with the help of modern machinery at our vendors unit. Silica Fumed is used in sealants and adhesives, cable compounds and cable gels, printing inks and plant protection. Our team of inspectors test Silica Fume on varied parameters to ensure that it stands in conformity with the globally laid standards and norms. This leads to its high rising demands among our competitors.
Silica Fume Features:
- Accurate composition
- Longer shelf life
Silica Fume Properties:
- PH : 3.6 - 4.3
- Purity : 99.8 %
- State : Crystal
- Color : Transparent
Silica Fume Applications:
Silica fume, also known as microsilica, is a byproduct of the production of silicon metal or ferrosilicon alloys. It consists of fine particles of amorphous silica, which are highly reactive and possess several unique properties. Silica fume has a wide range of applications across various industries. Here are some common uses of silica fume:
1. Concrete and Construction: Silica fume is extensively used in the construction industry, particularly in the production of high-strength and high-performance concrete. Its addition to concrete improves its strength, durability, and resistance to chemicals and abrasion. Silica fume also reduces the permeability of concrete, making it more resistant to water penetration and reinforcing steel corrosion. It is commonly used in bridge decks, parking structures, tunnels, and other infrastructure projects.
2. Refractory Materials: Silica fume is utilized in the manufacturing of refractory materials, which are resistant to high temperatures and harsh environments. Its addition improves the properties of refractories, such as their strength, thermal shock resistance, and abrasion resistance. Refractory applications include lining materials for furnaces, kilns, incinerators, and other high-temperature industrial processes.
3. Oil and Gas Industry: Silica fume finds applications in the oil and gas industry, specifically in well cementing operations. It is added to cement slurries used for cementing oil and gas wells to enhance the cement's mechanical strength and reduce permeability. Silica fume also helps prevent gas or fluid migration through the cement sheath, ensuring the integrity and longevity of wellbore seals.
4. Rubber and Tire Industry: Silica fume is employed in the rubber and tire industry to enhance the performance of rubber compounds. Its addition improves the reinforcement, tear resistance, and wear properties of rubber products. Silica fume is particularly useful in the production of high-performance tires, where it contributes to better traction, fuel efficiency, and tread wear characteristics.
5. Shotcrete and Gunite: Silica fume is used in shotcrete and gunite applications, which involve spraying concrete or mortar onto surfaces. The addition of silica fume enhances the adhesion of the material to the substrate, increases the strength and durability of the sprayed layer, and reduces rebound during application. This makes it suitable for applications such as tunnel linings, swimming pools, slope stabilization, and repair works.
6. Precast and Prestressed Concrete: Silica fume is commonly incorporated into precast and prestressed concrete products. It improves the early-age strength development of concrete, allowing for faster production cycles and reduced curing times. Silica fume also enhances the bonding between precast elements and improves the load-carrying capacity of prestressed components.
7. Ceramics and Glass Industry: Silica fume is utilized in the ceramics and glass industry as a filler or additive. Its high reactivity and fine particle size contribute to improved sintering and densification of ceramic materials during firing processes. Silica fume can enhance the mechanical strength, thermal shock resistance, and electrical properties of ceramics and glass products.
Frequently Asked Questions:
Q: What is silica fume?
A: Silica fume, also known as microsilica, is a byproduct of the production of silicon metal or ferrosilicon alloys. It is composed of very fine particles of amorphous silica.
Q: What are the properties of silica fume?
A: Silica fume has several unique properties, including a high surface area, high reactivity, fine particle size (usually in the range of 0.1 to 0.5 microns), and a high content of silicon dioxide (SiO2).
Q: How is silica fume used in concrete?
A: Silica fume is commonly used as a supplementary cementitious material in concrete. It is added to the concrete mix to improve its strength, durability, abrasion resistance, and resistance to chemicals and corrosion. Silica fume also reduces the permeability of concrete, making it more resistant to water penetration.
Q: How is silica fume incorporated into concrete?
A: Silica fume is typically added to the concrete mix as a partial replacement of cement, usually in the range of 5% to 10% by weight. It is mixed with the other concrete ingredients during batching and blending.
Q: What are the benefits of using silica fume in concrete?
A: The addition of silica fume to concrete offers several benefits, including increased compressive strength, improved flexural strength, enhanced durability, reduced shrinkage and permeability, and improved resistance to chemical attack and abrasion.
Q: What are some other applications of silica fume?
A: Apart from its use in concrete, silica fume is utilized in the production of refractory materials, rubber compounds, shotcrete and gunite applications, well cementing in the oil and gas industry, precast and prestressed concrete products, and in the ceramics and glass industry.
Q: Is silica fume hazardous to health?
A: Silica fume is a respirable material, meaning that the fine particles can be inhaled and may pose a health risk. However, when handled properly and with appropriate safety measures, the risk can be minimized. It is important to follow safety guidelines and use personal protective equipment when working with silica fume.
Q: How is silica fume stored?
A: Silica fume should be stored in a dry place to prevent moisture absorption, as it can lead to clumping and loss of its flowability. It is typically stored in sealed containers or silos to protect it from moisture and contaminants.
Q: Is silica fume environmentally friendly?
A: Silica fume is considered environmentally friendly as it is a recycled byproduct. It reduces the demand for virgin raw materials and contributes to waste reduction. Additionally, its use in concrete can enhance the durability and lifespan of structures, leading to less frequent repairs and replacements.
Q: Where can silica fume be obtained?
A: Silica fume is available from various suppliers and distributors. It can be purchased in bulk or in smaller quantities, depending on the specific application requirements.