Crimped Steel Fiber blended with multi-length monofilament micro-synthetic fibers

PSI CRIMPED STEEL FIBER MB are low carbon, cold drawn steel wire fibers combined with 100% virgin multi-length monofilament polypropylene micro-synthetic fibers designed to provide concrete with plastic shrinkage crack protection, temperature and shrinkage crack control, enhanced flexural reinforcement, improved shear strength and increase the crack resistance of concrete. PSI Crimped Steel Fiber MB complies with ASTM C1116, Standard Specification for Fiber Reinforced Concrete and Shotcrete and ASTM A820, Type V, Standard Specification for Steel Fibers for Fiber Reinforced Concrete. This steel macro-fiber blend will also improve impact, shatter, fatigue and abrasion resistance while increasing toughness of concrete. Dosage rates will vary depending upon the reinforcing requirements and can range from 24 to 96 lbs/yd³ (14 to 57 kg/m³).

Features & Benefits

  • Increases impact, shatter and abrasion resistance of concrete
  • Reduces segregation, plastic settlement, and shrinkage cracking of concrete
  • Provides three-dimensional reinforcement against macro-cracking
  • Increases overall durability, fatigue resistance and flexural toughness
  • Reduction of in-place cost versus wire mesh for temperature / shrinkage crack control
  • Easily added to concrete mixture at any time prior to placement


  • Commercial and industrial slabs on ground
  • Bridge decks, overlays and pavements
  • Precast concrete applications
  • Shotcrete, tunnel linings and slope stabilization
  • Mass concrete and composite deck construction

Specifications / Compliances

  • ASTM C1116
  • ASTM A820
  • ASTM D7508


PSI Crimped Steel Fiber MB is packaged in 24 lb (10.9 kg) bags; 1728 net lbs (784 kg) per pallet.