MAPEI Expands Concrete Reinforcement Portfolio

MAPEI has introduced Mapefibre ST 50 Twisted, a macro-synthetic fiber designed to enhance concrete durability and performance. Made from a blend of polypropylene and polyethylene resins, the fiber increases ductility, tensile strength, and residual strength while resisting corrosion in challenging environments. The company states that this solution can reduce the need for traditional steel reinforcement in certain applications, offering benefits in cost, labor efficiency, and long-term durability.

Suitable for industrial slabs, bridge decks, pavements, and precast concrete, Mapefibre ST 50 Twisted aims to meet key industry standards, ensuring versatility across construction projects. Its engineered design promotes even distribution within the concrete mix, minimizing plastic shrinkage, cracking, and thermal expansion effects. The company highlights its potential for improving efficiency while reducing material costs and environmental impact.

“With Mapefibre ST 50 Twisted, we’re delivering a next-generation fiber reinforcement solution that improves performance while offering significant cost and labor advantages. By reducing plastic shrinkage, cracking and the need for welded wire mesh or rebar in certain applications, this fiber provides contractors with a more efficient, reliable and durable concrete solution.” said Andrew Fulkerson, MAPEI Corporation’s Product Line Manager for Admixtures for Concrete.

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