Indiana Construction Company | Leading Manufacturer of GGBS & Ultrafine GGBS

Flagship Product

PozzoMax GGBS

Ground Granulated Blast Furnace Slag — a sustainable by-product of steel production that transforms concrete performance. Replace up to 70% of cement. Get 25–50% more long-term strength.

Complying with IS standards — GGBS: IS 16714:2018 · Ultrafine GGBS: IS 16715:2018

Understanding GGBS

From Steel Furnace to Superior Concrete

For decades, steel slag was discarded as industrial waste. Water quenching turns it into glassy granules; grinding turns those granules into a pozzolanic powder that can replace your cement.

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Step 01

Steel Furnace Operation

Iron ore, coke and limestone are fed into steel furnaces operating at approximately 1,500°C.

Step 02

Slag Formation

Slag — a by-product — floats on top of the molten iron during the steel-making process.

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Step 03

Rapid Water Quenching

The molten slag is rapidly cooled with water to form glassy granules, preserving its cementitious properties.

Step 04

Grinding to Powder

Granulated slag is ground in an advanced ball mill into a fine powder — high-quality GGBS, a superior cementitious material.

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Step 05 · The Result

PozzoMax GGBS

Packed in 50kg bags, jumbo bags and bulkers — ready to replace up to 70% of Ordinary Portland Cement with superior performance and dramatically lower carbon.

The result: a cementitious material that replaces up to 70% of Ordinary Portland Cement while delivering superior performance and dramatically lower carbon emissions.

#BuildStrongerBuildGreener

Still Using Only OPC in 2026?
You Are Already Behind.

The smarter shift: blended systems using GGBS & Ultrafine GGBS. The question is not whether to shift — it’s how fast you adapt.

OPC Alone

High Carbon. Low Durability.

Ordinary Portland Cement alone means a heavy carbon footprint, higher heat of hydration and structures that age faster.

GGBS Blended

Better Durability. Better Future.

Blended concrete with GGBS & Ultrafine GGBS — stronger, greener and built to last generations.

Up to 50% Lower Carbon Footprint

Higher Durability

Better Long-Term Strength

Improved Workability & Finish

Proven Performance · Backed by Science

The Numbers Behind PozzoMax

higher long-term strength than OPC
40-6 %
lower heat of hydration
(up to)
0 %
lower CO₂ emission than OPC (up to)
0 %
vs 40 MPa OPC 90-day compressive strength
0 MPa
Why GGBS

12 Compelling Reasons

Replace Up to 70% of OPC

Flexible replacement of Ordinary Portland Cement in concrete mixes.

Cost Saving

Reasonable saving in concrete cost without compromising quality.

25–50% More Strength

Superior long-term compressive strength vs. traditional cement.

At Your Doorstep

Flexible packing: 50kg bags, jumbo bags and bulkers.

Extended Structure Life

Enhanced durability and resistance for homes and structures.

Reduced Carbon Impact

Cuts embodied carbon of buildings by up to 90%.

Environmental Protection

Contributes to environmental and sustainability goals.

Lower Life-Cycle Cost

Minimal maintenance over the structure's lifetime.

Lower Temperature of Hydration

Ideal for mass pours and thick sections.

Smooth Finish

Better workability, placing and surface finish.

Elimination of Chloride Attack

Dense matrix resists chloride and sulphate ingress.

Reduces Thermal Cracking

Lower heat rise means fewer early-age cracks.

GGBS Advantages

GGBS vs. Portland Cement — The Clear Winner

For decades, steel slag was discarded as industrial waste. Water quenching turns it into glassy granules; grinding turns those granules into a pozzolanic powder that can replace your cement.

Portland Cement vs GGBS
PARAMETER PORTLAND CEMENT GGBS
CO₂ Emission Very high (0.8-1 MT/MT) Up to 90% less
Strength Good early strength Superior long-term strength
Durability Good High long-term durability
Heat of Hydration High Low — ideal for mass concreting
Cost Expensive Lower cost per performance unit
Sustainability Non-renewable 100% recycled & circular
Superior Strength Development Over Time
Compressive strength (MPa) vs. curing age. GGBS surpasses OPC at 28 days — at 180 days, the 70% GGBS mix achieves the highest strength.
0 20 40 60 3d 7d 14d 28d 56d 90d 180d
100% OPC
40% GGBS
50% GGBS
70% GGBS
Applications

Where Our Materials Are Used

From metro viaducts to marine works — GGBS, Ultrafine GGBS and Micro Silica across India’s toughest concrete jobs.

Marine & Coastal Works

Chloride resistance for jetties, sea links and coastal foundations.

Highways & Ready-Mix

Better crack resistance and lower life-cycle cost on long pavements.

Precast & Prestressed

Consistent finish and dimensional stability, batch after batch.

Industrial Floors

Abrasion and chemical resistance for plants and warehouses.

Viaducts & Metro Segments

Higher long-term strength and lower maintenance across elevated corridors.

Tunnel Linings & Shotcrete

Low heat of hydration and dense, low-permeability concrete underground.

Dams & Mass Concrete

Controls thermal cracking in large pours and resists sulfate attack.

Towers & High-Rise Cores

Reduced shrinkage and creep for M50+ mixes in tall structures.