Specifications

Engineered to specification.
Approved by peers.

Master Dowel bars are designed, manufactured, and independently tested to meet the standards engineers require. The full data set is available for review and DOT submittal.

Vs. steel dowels

Equivalent where it matters. Better everywhere else.

Six head-to-head metrics, scored side by side. Green badges mark where GFRP wins.

Property
Master Dowel GFRP
Conventional steel
  • Load transfer
    Equivalent structural performance — tested per ASTM D8444.
    1:1
    Equivalent
    1:1
    Reference
  • Corrosion resistance
    GFRP eliminates the #1 cause of joint failure on chloride-exposed pavement.
    Inert
    Won't rust
    Poor
    Corrodes at joint
  • Dowel weight
    Lighter handling means safer crews and faster placement.
    ⅓ wt
    Lightweight
    Heavy
  • Basket weight
    Reduced shipping and handling costs across every project.
    −60%
    Reduced load
    100%
    Standard
  • EM signature
    Compatible with toll sensors, MRI pads, and inductive systems.
    Zero
    Transparent
    High
    Conductive
  • CO₂ footprint
    Material-level decarbonization for DOT sustainability targets.
    −60%
    Sustainable
    High
    Resource intensive
5/6
Categories GFRP wins
1/6
Performance parity
0/6
Categories steel wins
Standards

Tested to ASTM.

Compliance with ASTM D8444 — the standard purpose-built for GFRP pavement dowels — backed by full mechanical and material testing.

  • ASTM D8444
    Standard Specification — Solid Round Glass Fiber Reinforced Polymer Bars for Concrete Pavement Dowels
    Primary spec — compliant
  • ASTM D4475
    Apparent Horizontal Shear Strength of Pultruded Reinforced Plastic Rods (Short Beam)
    Tested
  • ASTM D7617
    Transverse Shear Strength of Fiber-reinforced Polymer Matrix Composite Bars (Double Shear)
    Tested
  • ASTM D5117
    Dye Penetration of Solid Fiberglass Reinforced Pultruded Stock (Voids)
    Tested
  • ASTM D2584
    Ignition Loss of Cured Reinforced Resins (Fiber Content)
    Tested
Material properties

Typical values.

Tensile strength≥ 120,000 psi
Modulus of elasticity5.7 × 10&sup6; psi
Transverse shear≥ 22,000 psi
Density~2.0 g/cc
Fiber content (by weight)≥ 70%
Void content< 1.0%
Coefficient of thermal expansion (longitudinal)≤ 6 × 10⁻⁶ /°F
SurfaceSmooth, no secondary bond breaker required
Extended lifecycle vs steel

One install. Or multiple reconstructions.

What happens on the day you place each dowel — and every season after.

Timeline
Master Dowel GFRP
Conventional steel
  • Year 0
    Install
    Install · epoxy intact
  • Year 5
    No change
    Micro-abrasions at cut ends
  • Year 10
    No change
    Chloride penetration begins
  • Year 15
    No change
    Undercut rust · pop-outs visible
  • Year 20
    No change
    Joint distress · mill & fill
  • Year 25
    No change
    Full reconstruction required
  • Year 75
    No change
    — (replaced multiple times)

One Master Dowel install. Multiple steel reconstructions. The math compounds across every joint, every lane-mile, every season.

Specify Master Dowel with confidence.

Request the full third-party test data, ASTM compliance package, and DOT submittal documentation for your next project.