FiberForce 850

FiberForce 850TM (formally, Advanced Performance BlendTM ) is a blend of FiberForce T5-50TM and FiberForce 150TM. FiberForce 850 fibers are primarily used as plastic shrinkage crack reinforcement and post-first crack toughness in concrete.


  • Commercial
  • Light, Medium, and Heavy Industrial and Warehouse Sites
  • Ingress-egress roadways and industrial and warehouse sites
  • Parking facilities and malls
  • Bonded concrete overlays
  • Septic tanks
  • Vaults
Elevated decks with composite steel decking

Recommendations for Use

Recommended dosage rate is typically between, but not limited to, 24 – 48 lbs. per cubic yard*.

However, specific dosage rate should be established by the project engineer or government agency for a given application based on project conditions and requirements.

Please note that at 23 lbs. per cubic yard of FiberForce T5-50, the steel fibers function purely as a secondary reinforcement.

* Blend of 23 lbs. per cubic yard of FiberForce T5-50 and 1 lb. per cubic yard of FiberForce 150.

Mixing Instructions

FiberForce 850 fibers are pre-packaged in water-soluble bags that can be added directly into the concrete mix.

To ensure optimum distribution, the fibers must be introduced to the ready-mix drum during or after the concrete is batched and loaded into the truck.

A minimum of 75-100 revolutions at mixing speed or 5-7 minutes of mixing at high speed may be needed to ensure complete dispersion of the fibers.

For detailed mixing, placing and finishing instructions, please contact your Regional FiberForce Expert.

Physical Properties

  • Microsynthetic ComponentFiberForce 150
  • MaterialPolypropylene
  • AbsorptionNil
  • Specific Gravity0.91
  • Alkali ResistanceExcellent
  • Electrical ConductivityLow
  • Equivalent Diameter0.0019 in (0.048 mm)
  • Standard Length0.75 in (19 mm)
  • Steel ComponentFiberForce T5-50
  • MaterialCold-drawn shaved steel wire
  • Avg. Equivalent Diameter32
  • Avg. Aspect RatioCorrugated
  • Standard Length1.5 in (38 mm)

Features & Benefits

  • Provides post-first crack residual strength to concrete
  • Provides temperature-shrinkage reinforcement
  • Increases concrete durability - including impact and abrasion resistance and fatigue strength
  • Reduces plastic shrinkage and settlement cracking
  • Reduces water migration, bleed water, and permeability of concrete
  • Provides uniformly distributed reinforcement throughout the concrete, not just in one plane as with traditional steel reinforcement
  • A cost-effective alternative to traditional steel reinforcement

Product Approvals & Compliance with Industry Standards

  • ASTM C1116 Section 4.1.1 and Note 2
  • ASTM C1116 Section 4.1.3