r smart

r-smart is a straight, brass-coated, ultra-high-performance steel microfiber. It is designed to provide exceptional reinforcement in concrete at very low dosages, excelling particularly in thin-section elements.

Its design makes it ideal for:

• Ultra-High Performance Concrete (UHPC): Where it is a key component to achieve ductile matrices with extraordinary strengths.
• Thin precast elements: GRC-like architectural panels, urban furniture, or any piece requiring high strength in thin sections.
• Pavements and slabs with special requirements: Where superior crack control is needed with minimal dosages.
• Technical and repair mortars: To improve cohesion and impact resistance.

Shotcrete: To obtain thin, high-performance reinforcement layers

Its key advantage is efficiency: it achieves very high mechanical performance with significantly lower dosages than conventional steel fibers. This is due to its extremely high tensile strength (min. 2,400 MPa / 348 ksi) and its optimized geometry (high aspect ratio).

The brass coating serves a dual purpose:

1. Protection: It provides a barrier against corrosion during storage and mixing.
2. Improved Bond: It enhances chemical compatibility and bond with the cement matrix, ensuring effective stress transfer.

• Dosage: r-smart achieves equivalent or superior residual strengths with much fewer kilograms (or pounds) per cubic meter (or cubic yard).
• Dispersion: Being a microfiber, it distributes extremely homogeneously, even in concrete with fine aggregates or in elements with complex geometries, without the risk of clumping or "hedgehog" formation.
• Finish: It is virtually invisible on the finished surface, which is crucial for architectural applications.

Absolutely. Despite its small size, its ultra-high mechanical strength allows it to impart significant post-crack residual strength to the concrete, meeting the requirements to be considered a structural reinforcement according to the EN 14889-1 (Group 1) standard.

Due to the low required dosages, the impact on the mix's workability is minimal. Concrete reinforced with r-smart maintains good consistency and is easily pumpable, provided a proper mix design is used.

r-smart fiber is manufactured according to the highest quality standards and complies with the following international regulations:

• EN 14889-1:2006: For steel fibers for concrete, classified as Group 1 (cold-drawn wire).
• ASTM A820/A820M-06: Standard Specification for Steel Fibers for Fiber-Reinforced Concrete, classified as Type I.