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Ultra Fine Fly Ash

ULTRA FINE
FLY ASH

✓ Ultra Fine Fly Ash ✓ Pan-India Supply ✓ Test Reports Available
Request a Quote View Specifications
≤ 12%
Fineness Residue on 45µ
D50 ~3µm
Mean Particle Size
AASHTO + IS
Dual Standard Compliance
About the Product

WHAT IS
ULTRA POZZ?

Ultra Pozz is TSG Impex's premium Ultra Fine Fly Ash — engineered through advanced air classification to achieve a particle fineness far superior to standard fly ash. It serves as the core pozzolanic ingredient in High-Performance and High-Strength Concrete mixes used in India's most demanding super-structures.

Compliant with AASHTO-M 295 and IS 3812 : Part 1, Ultra Pozz delivers exceptional pozzolanic reactivity, superior particle packing, and dramatically reduced permeability — making it indispensable for bridges, marine structures, nuclear facilities, and landmark high-rises.

Ultra Pozz
Ultra Fine Fly Ash
Supplied by TSG Impex India
Why Choose This Product

KEY BENEFITS

Exceptional Pozzolanic Reactivity

Ultra-fine particles react rapidly with calcium hydroxide, densifying the cement paste matrix far more than standard fly ash.

High-Strength Concrete

Enables M60–M100 grade concrete essential for super high-rise columns, transfer plates, and long-span bridges.

Superior Impermeability

Particle packing reduces capillary pores to near-zero — critical for marine, underground, and water-retaining structures.

Reduced Alkali-Silica Reaction

Suppresses harmful ASR expansion in structures exposed to reactive aggregates and moisture.

Lower Heat of Hydration

Ideal for mass pours in raft foundations, pile caps, and dam structures where thermal cracking is a concern.

Enhanced Surface Finish

Fine particles fill surface voids, resulting in a denser, smoother concrete surface with less remedial treatment required.

Technical Data

TECHNICAL
SPECIFICATIONS

Test reports and batch certificates are available on request with every consignment.

Parameter Value / Limit
Standard IS 3812 : Part 1 / AASHTO-M 295
Mean Particle Size (D50) ≈ 3 µm
Fineness (45µ residue) ≤ 12%
Specific Surface Area > 400 m²/kg
Loss on Ignition ≤ 3%
Specific Gravity 2.20 – 2.50
Moisture Content ≤ 0.5%
SO₃ Content ≤ 2.5%
Compressive Strength Index ≥ 95% at 28 days
Pozzolanic Activity Index ≥ 85% at 7 days (ASTM)

* Values are indicative. Actual test certificates provided with each supply.

Supply Formats
🚛
Bulk Tanker
Pneumatic tankers — 20–25 MT per load. Direct silo integration at batching plants.
📦
Jumbo Bags
500 kg FIBC bags — ideal for precast plants and controlled-environment mixing.
🗃️
25 kg Bags
Multi-wall paper bags — for laboratory trials, small batches, and remote sites.
TECHNICAL DATA SHEET

Download the complete TDS including test methods and application guidelines.

Request TDS / Test Reports
Where It's Used

APPLICATIONS

🏙️

Super High-Rise

M80–M100 columns and core walls in landmark towers where OPC alone cannot achieve required strength.

🌉

Bridges & Marine

Chloride penetration resistance essential for coastal bridges, jetties, and harbour structures.

☢️

Nuclear & Defence

Dense, low-permeability concrete for radiation shielding and secure infrastructure.

🚇

Metro & Tunnels

Impermeability and sulphate resistance for underground transit and utility tunnels.

🏗️

Precast HPC

High-Performance Precast elements — beams, columns, façade panels — with tighter tolerances.

🛢️

Water & Wastewater

Chemical-resistant concrete for reservoirs, treatment plants, and marine outfall structures.

Proven Track Record

USED IN KEY PROJECTS

Burj Khalifa
Dubai, UAE
Bandra-Worli Sea Link
Mumbai, India
Delhi Metro
New Delhi, India
Signature Bridge
New Delhi, India
Common Questions

FREQUENTLY ASKED
QUESTIONS

Ultra Pozz is air-classified to achieve a D50 of ~3µm — roughly 5–10x finer than standard fly ash. This ultra-fine particle size gives it far higher pozzolanic reactivity, better particle packing, and superior strength contribution.

Typically 8–15% by weight of cementite material in High-Performance Concrete. Higher doses (up to 25%) are used in special applications like marine structures and mass concrete.

Yes — a blended approach using standard fly ash (20–25%) and Ultra Pozz (8–12%) together achieves cost optimisation while meeting HPC performance targets.

Yes — available in 25 kg bags, 500 kg jumbo bags, and bulk pneumatic tanker delivery for plant integration.

Ultra Pozz has been specified in iconic projects including Burj Khalifa (Dubai), Bandra-Worli Sea Link, and multiple metro and expressway projects across India.

Get Ultra Pozz

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QUOTE TODAY

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