STRUX® Synthetic Macro-Fibers

High strength post-crack protection.

A replacement for welded wire mesh.

Welded wire mesh has long been used to reinforce slab-on-ground concrete, bridge decks and thin-walled precast applications for temperature and shrinkage crack control. Although mesh provides adequate performance, it adds many downsides. The mesh takes time to transport, install and correctly chair.

STRUX® products, such as STRUX® 90/40 synthetic macro-fibers, improve impact resistance, durability and long-term crack control properties of concrete by equally distributing structural fibers throughout the entire concrete matrix. There's no risk from corrosion, and none of the risk or job site obstruction inherent with the use of welded wire or mild steel reinforcement. STRUX® macro-fibers eliminate time and labor versus installing welded wire mesh (WWM). They eliminate the need to lift, carry, hoist, position, cut and tie awkward, heavy sheets or rolls of welded wire fabric (WWF) and thus help to reduce construction time and labor costs. STRUX® macro-fibers can be used to replace non-structural steel for slab on ground, precast elements, elevated decks and tunnel liners.

Download the STRUX macro synthetic fiber calculator


Products & Accessories


  • Product Name
  • Description
  • Key Benefits
  • Applications Type
STRUX® 75/32

STRUX® 75/32 Fiber is a synthetic macro fiber complying with ASTM C1116/C1116M Type III, which can be used in ready-mixed concrete for different applications such slab-on-ground flooring, thin-walled precast overlays and pavements. 

Key Benefits
  • Easy to mix and fast to disperse. 
  • Barely visible on the surface obtaining highly aesthetical concrete. 
  • Uniformly built into the concrete, eliminating a concern over proper positioning of reinforcement. 
Application Type
STRUX® 85/50 Synthetic Macro-Fiber

STRUX® 85/50 synthetic macro fiber reinforcement is a unique form of high strength, high modulus synthetic macro reinforcement that is distributed throughout the concrete matrix.

Key Benefits
  • Safety
  • Durability
  • Crack Control
  • Energy absorption
  • Stain free concrete surfaces
  • Quick, easy and safe application
  • An efficient and effective secondary
Application Type
STRUX® 90/40 Synthetic Macro-fibers

STRUX® 90/40 synthetic macro-fibers are a unique form of high strength, high modulus synthetic reinforcement that is evenly distributed throughout the concrete matrix.

Key Benefits
  • Saves money through lower labor costs and fewer construction days
  • Enhances safety by eliminating handling of steel fibers, welded wire fabrics or light rebar 
  • Eliminates concerns of proper positioning of reinforcement
Application Type

STRUX® 90/40 is specifically engineered to provide high, post-crack control performance.

STRUX® BT50 Synthetic Macro-Fiber

STRUX® BT50 synthetic macro fiber reinforcement is a high strength, high modulus synthetic macro reinforcement that imparts toughness, impact and fatigue properties to concrete. STRUX® BT50 is a patented engineered design providing superior post-crack control performance with a broad range of applications.

Key Benefits
  • Savings from reduced labor costs and shorter construction time
  • Non corroding
  • Controls both plastic and drying shrinkage
Application Type

STRUX® BT50 fibers are primarily designed to replace steel fibers, welded wire fabric, light rebar and other select secondary reinforcement in slab-on-ground flooring.


Shave off time from construction projects

In today's market, schedule is everything. Transporting, placing, and chairing welded wire mesh adds time to any project. STRUX® eliminates all that time—and its material characteristics make it as strong, if not stronger, than the alternative.

Add toughness to concrete with less material

STRUX® fibers add toughness, impact, and fatigue resistance to concrete. As opposed to microfiber reinforcement, STRUX® macro fibers add post-crack control performance. STRUX® allows users to save on material by decreasing thickness of slab on grade or overlays. For designers, this increases the range of possible forms. For contractors, this means less material overall may be needed. STRUX® reduces the time required for the critical path resulting in faster construction times and earlier delivery of the building for the contractor.

Get technical advice backed by experience

Our products don't exist in a vacuum. They're supported by our world-class technical experts, and STRUX® is no exception. Our experts will assist your organization in developing the perfect mix design to incorporate STRUX®. Our SDS Software can also calculate the necessary addition rate using the compressive strength of concrete, modulus of sub-grade reaction, thickness of concrete, and applied loads. For more information about STRUX® and how you can incorporate it into your product or design, contact GCP today.

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