Overview of Fumed Silica

Fumed silica, also known as pyrogenic silica, is an ultra-fine, high-purity amorphous silicon dioxide (SiO2) produced via the combustion of silicon tetrachloride in an oxygen-hydrogen flame. It appears as a fluffy white powder and is valued for its ability to thicken, stabilize, and reinforce materials.

Features of Fumed Silica

• High Surface Area: Typically ranges from 50 to 380 m²/g, providing excellent thickening and reinforcing properties.
• Hydrophilic or Hydrophobic Variants: Available in both forms depending on surface treatment, allowing for tailored applications.
• Excellent Thixotropy: Increases viscosity and improves flow properties of liquids and pastes.
• Chemical Inertness: Resistant to most chemicals, making it suitable for a wide range of industrial uses.

•  Enhances free-flowing properties and stability.

( Spherical microsilica/ Silica fume Microsilica)

Specification of Spherical microsilica/ Silica fume Microsilica

Spherical microsilica is also called silica fume. It is a really fine powder. Factories make it when they produce silicon steel or ferrosilicon alloys. The process catches the smoke from electric arc heaters. This product contains mainly silicon dioxide. The silicon dioxide content is really high. It is normally over 85%. Frequently it is even more than 90%. The fragments are incredibly tiny. They are a lot smaller sized than concrete particles. Most fragments are much less than 1 micron in size. Their form is mainly round. This round form aids the product circulation well. It additionally helps the product pack densely.

The surface area of microsilica is significant. This is measured making use of the wager approach. The area is usually between 15,000 and 30,000 square meters per kg. This big surface area makes microsilica very responsive. It responds highly with calcium hydroxide. This reaction occurs in concrete mixes. The result is additional calcium silicate hydrate gel. This gel makes concrete a lot stronger and more sturdy. Microsilica particles fill small areas. They fit in between concrete grains and other products. This filling effect makes the concrete less porous. Water and dangerous chemicals can not enter as quickly.

Microsilica powder is typically light grey or white. Its bulk thickness is fairly low. Loose mass density is often between 200 and 350 kilograms per cubic meter. Packed bulk thickness is greater. It could be in between 300 and 500 kilograms per cubic meter. Certain gravity for microsilica is around 2.2. This is lower than the details gravity of regular portland concrete. People utilize microsilica mainly in high-performance concrete. It is likewise made use of in refractory materials and unique grouts. It improves the stamina and the chemical resistance. It makes concrete denser and decreases permeability. Builders use it in bridges, aquatic frameworks, and skyscrapers. It is an essential ingredient for requiring tasks.

( Spherical microsilica/ Silica fume Microsilica)

Applications of Spherical microsilica/ Silica fume Microsilica

Spherical microsilica, likewise called silica fume, is a really fine powder. It originates from making silicon steel or ferrosilicon alloys. This powder is incredibly helpful in many sectors. It makes concrete much more powerful and extra resilient. Including silica fume to concrete mixes boosts their efficiency considerably. It fills up the small areas between concrete bits. This makes the concrete denser. Denser concrete resists water infiltration much better. This lowers the threat of deterioration for steel support inside. Bridges and parking lot profit significantly from this defense.

Silica fume also makes concrete harder. It responds chemically with the cement. This response produces more of the strong binding product in concrete. The result is concrete with greater compressive strength and much better abrasion resistance. Floorings in manufacturing facilities and warehouses see heavy traffic. Silica fume concrete lasts much longer in these challenging problems.

Fire resistance is an additional big and also. Silica fume concrete manages high heat much better than routine concrete. It does not break or spall as quickly under intense fire. Buildings requiring better fire safety use this concrete.

Beyond concrete, silica fume is beneficial in refractories. Refractories line high-temperature heating systems. Adding silica fume makes these linings more powerful and much more secure under severe warm. This extends the heater cellular lining’s life. The porcelains market uses it as well. It helps make ceramic products denser and stronger. This boosts the final product’s quality. Silica fume works as a filler and a reactive active ingredient in these applications. Its great particles load snugly together. This produces a strong, high-performance product.

Company Introduction

Welcome to HiphopGalaxy, a trusted global supplier of high-quality silicon dioxide (SiO2) powder, renowned for its exceptional purity and performance. Established with a vision to deliver cutting-edge materials that meet the diverse needs of modern industries, we have positioned ourselves as a leading player in the international market.

Our SiO2 powders find applications across multiple sectors, including adhesives, coatings, pharmaceuticals, cosmetics, polymers, and electronics. Each application benefits from the unique properties of our products—high surface area, excellent thixotropy, chemical inertness, and superior reinforcement capabilities. Whether you need hydrophilic or hydrophobic variants, we offer tailored solutions to meet your specific requirements.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Spherical microsilica/ Silica fume Microsilica

What is microsilica?
Microsilica is a very fine powder. It comes from making silicon metal or ferrosilicon alloys. People collect the smoke from furnaces. This powder has mostly silica. The particles are extremely small. They are spherical. This makes microsilica useful.

Why use microsilica in concrete?
Adding microsilica makes concrete much stronger and more durable. The tiny particles fill the spaces between cement grains. This creates a denser concrete mix. Water cannot penetrate as easily. The concrete gains higher compressive strength. It also resists chemicals better. Structures last longer.

Is microsilica safe?
Microsilica itself is not toxic. Breathing the fine dust is a health risk. It can irritate lungs. Always use a good dust mask when handling it. Work in well-ventilated areas. Follow safety rules. Wear proper protective gear. Keep the material damp to reduce dust.

How do you handle microsilica?
Microsilica arrives in bags or bulk tankers. Store bags in a dry place. Keep them sealed until use. Add microsilica directly to the concrete mixer. It works best with superplasticizers. These help the concrete flow. Mixing time might need to be longer. Ensure it disperses evenly.

How small are microsilica particles?
Microsilica particles are incredibly tiny. Most are smaller than one micron. The average size is about 0.1 to 0.3 microns. This is roughly 100 times finer than cement particles. The fineness gives microsilica its special properties. It fills gaps. It reacts quickly.

( Spherical microsilica/ Silica fume Microsilica)