Second life steel fibers for more sustainable concrete structures

Dramix® Loop™ addresses one of the construction industry’s greatest challenges: drastically reducing CO₂ emissions without compromising performance. It does so by transforming high-grade tire cord from end-of-life tires into high-performance steel fibers for concrete reinforcement.

From the world’s leading steel tire cord manufacturer comes a new chapter — redefining concrete reinforcement through circularity. By prioritizing a circular use for this premium steel, Bekaert developed the first certified second-life steel fiber, engineered specifically for concrete reinforcement and designed to support a truly circular economy. Delivering sustainability you can measure and performance you can trust.

What truly sets Dramix® Loop™ apart is its combination of 100% circularity, near-zero carbon emissions, and consistent mechanical performance. With a high tensile strength of 390 ksi average and an ultra-dense fiber network, enabled by its thin average diameter of 0.01 in, Dramix® Loop™ allows lower dosages while delivering effective crack control and load transfer. All this with exceptional environmental value, without additional investment.

Maximizing performance, minimizing environmental impact

Near-zero carbon emissions

Dramix® Loop™ is made from second life steel, significantly reducing its environmental impact, as it has an EPD value of 0,0436 kg CO2e/kg.

Ultra dense fiber network

Thanks to the fibers’ high aspect ratio, up to 160,000 fibers/kg (avg.) can be achieved within the concrete matrix, enhancing crack control and post-cracking ductility while ensuring high stress resistance without fiber breakage.

Driving a circular economy

Made from the tire cord of end of-life tires, Dramix® Loop™ repurposes steel to support a sustainable, closed-loop economy.

Maximized benefits of steel fiber reinforcement

Dramix® Loop™ delivers the same benefits as steel fiber reinforcement - cost efficiency, enhanced durability and improved safety, while offering exceptional environmental value without additional investment.

Our Dramix® Loop™ portfolio includes three variants, each engineered to balance workability, dosage, and reinforcement precision — giving you the flexibility to match your mix, project, and performance needs.

Built for a circular future

Being designed to support a truly circular economy, Dramix® Loop™ steel fibers deliver performance without compromise:

Up to 80% CO₂ reduction when combined with Dramix® 4D compared to rebar solutions.
Supports LEED, BREEAM, and EU Taxonomy compliance for sustainable projects.
Contributes to Scope 3 emission reductions, helping owners and developers meet ESG goals.
100% circular: steel that’s reborn, ready to reinforce again.

Adapts to your project

Every project is different. That’s why Dramix® Loop™ offers application flexibility through a tailored range of fiber lengths and tolerances:

Adapt fiber dosing based on application demands.
Blend with Dramix® steel fibers for a hybrid solution.
Backed by our testing and technical support.

Helps you build smarter

Need help choosing the right fiber or adjusting your mix? Our experts offer full support — from specification to on-site implementation — so you can build better with confidence.

Engineered to perform – Confidently

Dramix® Loop™ steel fibers are designed to turn circularity into real, consistent mechanical performance across projects and applications:

High tensile strength of 2.700 MPa average across all variants
Ultra-dense fiber network, enhancing crack control and load transfer while providing uniform fiber distribution in concrete
ASTM aligned / CE marked with European Technical Assessment (ETA)

This is second-life steel with a clear purpose: reinforcing concrete structures with confidence, durability, and measurable impact.

Dramix® Loop™ Wins World of Concrete 2026 Innovative Product Award

Dramix® Loop™ has been honored with the Industry Choice Award in the Concrete Slab Materials category at the World of Concrete Innovative Product Awards 2026 — one of the most prestigious recognitions in the global concrete and masonry industry.

Organized as part of World of Concrete (WOC), the leading international event for the construction industry, the Innovative Product Awards highlight innovations and solutions that demonstrate meaningful advancement in performance, efficiency, and industry impact. Winners are selected directly by industry professionals, including owners, engineers, contractors, and decision-makers.

The recognition at World of Concrete 2026 highlights the increasing importance of sustainable and circular innovation in construction materials. As the construction sector seeks solutions that balance environmental responsibility with technical reliability, Dramix® Loop™ provides a credible and scalable pathway forward.

Applications

Industrial floors.
Outdoor pavements.
Residential applications.
Sprayed concrete.
Infrastructure applications.
Precast elements.
(Ultra) High Performance Concrete (UHPC/HPC).

Benefits

100% circular.
Near-zero carbon emissions.
High strength.
Versatile and precision-engineered.
Compatible with Dramix® solutions.

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Features

Average tensile strength 2.700 MPa

Average diameter 0,27 mm

Average fiber lengths 15, 20, or 25 mm

Aspect ratios (L/d) 55, 75 or 93

Fiber network Up to 160.000 fibers / Kg

Bring Dramix® Loop™ to your next project

Work with our expert team to implement this innovative solution with a tailored plan from start to finish.

Contact our experts

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