Micro Silica (silica Flour) Supplier in UAE and Turkey

Micro Silica, also known as Silica Flour , is an ultra-fine, non-crystalline silica byproduct generated during the production of silicon or ferrosilicon alloys. Composed primarily of amorphous silicon dioxide (SiO₂), it is characterized by spherical particles less than 1 micron in diameter—approximately 100 times smaller than average cement particles. As a leading micro silica supplier, we offer premium-grade products that meet the demanding needs of construction, refractory, and oil well industries.

Alternate Names for Micro Silica

• Silica Fume

• Condensed Silica Fume

• Silica Flour

• Amorphous Silica

• Ultrafine Silicon Dioxide

Why Choose Us as Your Trusted Micro Silica Supplier?

We specialize in sourcing and supplying high-quality micro silica from reliable production plants. With our base in Dubai and distribution channels in the Middle East, Africa, and Asia, we offer consistent supply, competitive pricing, and customizable packaging solutions. Our technical team ensures each batch meets ASTM C1240, EN 13263, and ISO standards.

Chemical Composition and Technical Specifications

As a versatile micro silica supplier, we offer various grades depending on industry requirements:

1. Construction Grade Micro Silica (92–96% SiO₂):
   Widely used in concrete, mortars, and cementitious mixtures to improve compressive strength and reduce permeability.

2. Refractory Grade Micro Silica (96–98% SiO₂):
   Ideal for high-temperature applications like refractory bricks, castables, and monolithics.

3. Oil Well Cementing Grade (85–95% SiO₂):
   Enhances the performance of cement used in oil well grouting, especially under high temperature and pressure.

Applications of Micro Silica

1. High-Performance Concrete (HPC)

Micro silica significantly improves concrete strength, density, and resistance to chemical attacks. It’s widely used in:

• Bridges and marine structures

• High-rise buildings

• Airport runways and parking decks

• Dams and tunnels

• Precast concrete elements

2. Refractory Industry

Micro silica enhances thermal shock resistance and mechanical strength in refractory linings and castables. Common uses include:

• Furnace linings

• Tundish & ladle linings in steel production

• Kiln repairs

• Foundry molds

3. Oil Well Cementing

Micro silica is used to reduce cement permeability and prevent gas migration in wellbore constructions. It enhances:

• Resistance to high temperature and pressure

• Bond strength to casing and formation

• Sulfate and chemical attack resistance

4. Shotcrete & Tunnel Lining

It improves adhesion, reduces rebound, and enhances strength—making it ideal for underground and overhead applications.

5. Asphalt Modification

Micro silica improves asphalt’s resistance to rutting and thermal cracking when used in road surfacing.

Benefits of Using Micro Silica

• Increased Compressive Strength

• Improved Durability

• Reduced Permeability

• High Resistance to Sulfates and Chlorides

• Superior Finish and Reduced Cracks

• Excellent Chemical Resistance

• Lower Rebound Loss in Shotcrete

Packaging and Delivery

As an established micro silica supplier, we provide flexible and safe packaging options:

• 10 kg & 20 kg paper bags (with or without pallets)

• 500 kg – 1000 kg jumbo bags (with moisture-resistant liners)

• Customized packaging available on request

Delivery Terms:

• FOB, CIF, CFR available from Jebel Ali Port, Dubai

• Export documentation, COA, MSDS, and TDS available upon request

• Minimum Order Quantity: 24 MT (1 Full Container Load)

Micro Silica HS Code and Compliance

• HS Code: 28112200

• CAS Number: 69012-64-2

• Standards: ASTM C1240, EN 13263, ISO 9001:2015

• Origin: UAE

Detailed Industry Use Cases for Micro Silica

1. Mega Infrastructure Projects

Micro silica is a key component in mega infrastructure and civil engineering projects where durability and service life are critical. Its ultra-fine particles fill capillaries in concrete, making the structure denser and less permeable. This is essential in:

• Bridges over saltwater: where chloride resistance is vital

• Dams and reservoirs: where water seepage must be minimized

• Tunnels and subways: where chemical resistance and long-term integrity are essential

Example:
A recent project in the UAE used our high-purity micro silica in a bridge project spanning a coastal channel. After 180 days, the concrete achieved over 85 MPa compressive strength, surpassing initial design targets.

2. Precast and Prestressed Concrete

Micro silica is widely used in precast beams, columns, walls, pipes, and prestressed concrete segments. Its rapid strength gain allows early demolding, reducing production cycles and improving plant efficiency.

Benefits in this application include:

• High early strength

• Enhanced surface finish

• Dimensional stability

• Resistance to shrinkage cracks

3. Marine and Coastal Construction

In aggressive marine environments, micro silica protects concrete from chloride-induced corrosion. It acts as a barrier to salt penetration, prolonging the lifespan of marine structures such as:

• Port pavements

• Offshore platforms

• Seawalls

• Underwater pipelines

Micro silica in marine-grade concrete reduces chloride diffusion coefficients by over 50%, improving corrosion resistance.

4. Shotcrete for Tunneling and Mining

The addition of micro silica in shotcrete improves adhesion, cohesion, and rebound rate. It allows for thicker, more stable application on vertical and overhead surfaces, making it ideal for:

• Tunnel linings

• Underground mining reinforcement

• Metro station walls

• Hydropower plant structures

Micro Silica Dosage Guidelines

Depending on the application, the recommended dosage of micro silica varies between 5% to 15% of the total cementitious materials.

Micro Silica in Sustainable Construction

Micro silica not only improves performance but also contributes to sustainable and green building practices:

• Reduces Cement Usage: Its pozzolanic activity enables partial cement replacement.

• Low Carbon Footprint: As an industrial by-product, it promotes circular economy.

• Increased Service Life: Lower maintenance and repair frequency due to enhanced durability.

Using micro silica in your projects can contribute toward LEED certification and other green building standards.

Safety, Handling & Storage Recommendations

While micro silica is non-toxic and non-hazardous, proper handling is recommended:

• Use PPE such as dust masks, gloves, and goggles

• Store in dry, shaded, and covered areas

• Avoid moisture exposure to prevent caking

• Use pneumatic systems for bulk handling

Safety documents such as MSDS and handling guides are available with each shipment