Tested to IS 3812 Part 1 & Part 2 · ASTM C618 Class F under qualification

Fly ash,
graded & delivered
by the tonne.

The fine grey powder behind stronger, lower-carbon concrete with lower binder cost potential — classified for consistent fineness and dispatched with a signed test certificate against every tested lot.

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  • Lot-tested every dispatch
  • Loose bulk · container liner · jumbo
  • 24 hr quote turnaround
A conical heap of fine grey fly ash powder
SiO₂+Al₂O₃+Fe₂O₃ 93.08%
Fineness · Blaine 382m²/kg
45 µm sieve residue 30.12%

Measured results — NBML report 1070, Aug 2026. Lot-specific; each dispatch carries its own certificate.

15–35%typical cement replacement*
~900 kgCO₂ avoided per tonne of cement displaced*
5signed lab reports published
Every lotindependently tested before dispatch

* Indicative. Actual replacement depends on mix design, cement type, performance requirements and project-specific testing; CO₂ figure is a calculation at 0.9 kg CO₂ per kg of cement displaced, not a measured property.

IS 3812 · Part 1 & 2 · tested◆ ASTM C618 Class F · under qualification◆ NBML · BIS-approved laboratory◆ Signed lot certificate◆ IS 3812 · Part 1 & 2 · tested◆ ASTM C618 Class F · under qualification◆ NBML · BIS-approved laboratory◆ Signed lot certificate◆
Third-party tested

The lab reports are on this site.

Two primary reports from the BIS-approved NBML laboratory cover IS 3812 Part 1 and Part 2 between them — chemistry and physicals from the same lot. The signed PDFs, not a summary.

View test reports →
Why buy fly ash

One material. Lower cost, longer life, less carbon.

Cuts binder cost

Typically replaces 15–35% of cement per cubic metre with a lower-cost classified pozzolan — the working range is set by your mix design and testing.

Stronger over time

The ongoing pozzolanic reaction keeps building compressive strength well past 28 days. A general property of fly ash concrete — not a strength result certified for a particular lot.

More durable concrete

Denser, less permeable mixes resist sulphate, chloride and alkali–aggregate attack. Achieved performance depends on mix design and project conditions.

Lower embodied carbon

Every tonne that replaces clinker avoids close to a tonne of CO₂ from cement making — an indicative calculation, not a measured property.

Better workability

Spherical particles can improve flow and pumpability in suitable mix designs, while reducing bleeding and segregation.

Lot-wise tested consistency

Multi-source supply with lot-wise testing — classified fineness and a signed test certificate for every tested lot.

Supply & export

Three ways it leaves the country.

Loose bulk, container liner or 1 MT jumbo bags — the route is chosen with you against the loading port, terminal handling and vessel on offer, not fixed in advance.

  1. 01

    Loose dry bulk

    Pneumatically loaded into a closed dry bulk vessel — the lowest cost per tonne at volume, with no packaging to handle at either end.

    Subject to terminal and vessel availability
  2. 02

    Container liner

    A sealed liner bag inside a standard container, filled and discharged pneumatically. Suits regular parcel volumes and destinations without bulk terminal handling.

    Container liner supplied to the buyer's specification
  3. 03

    1 MT jumbo bags

    Palletised FIBC bags, shipped break-bulk in vessel or stuffed into containers. The most flexible route where discharge is by crane or forklift.

    Also available bagged, 50 kg palletised
Nagesh Trading fly ash supply and export: loose bulk pneumatically loaded to a closed vessel, a sealed 20 ft container liner bag, and 1 MT jumbo bags palletised at berth, with the end-to-end chain from Korba, Seepat, Kanhia and Talcher by rail and road to port, packing and vessel export.
The three export modes and the chain behind them — sourcing, inland movement, port handling, packing and vessel export.
National sourcing network Korba · Seepat · Kanhia · Talcher India — moved by rail, road, port and vessel. Korba is the current dispatch hub; every source is tested lot by lot.
Loose bulk dry bulk vessel Container liner standard container 1 MT jumbo FIBC, palletised Rail rakes for the inland leg

Export method is subject to port, terminal and vessel requirements at the time of booking. Tell us your destination port and we will confirm which routes are open for that lane.

See the value

Estimate your savings & carbon avoided.

Drag the sliders to your project. We estimate the cement displaced, the money saved and the CO₂ avoided — then send the assumptions with your quote.

Prices in
Assumptions — edit to your own numbers
  • ₹/ kg
  • ₹/ kg
  • kg / kg cement

The prices above are placeholders for illustration, not a Nagesh Trading quotation — replace them with your own delivered costs. Switching market resets them to indicative regional figures. Your quote carries project-specific, delivered pricing.

Cement displaced 42,500 kg / mo
Estimated cost saving ₹2,55,000 / mo
CO₂ avoided 38.3 t / mo
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