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Prestress/Post-Tensioning Strand Systems

Avar Construction Systems, Incorporated

ACS 12.5

Last edit date: 3/20/2024

GENERAL
Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
12 1/2" 495.6 3500 372

WEDGES
Wedges Length Material Wedge Parts Wedge Angle Wedge Inside DiameterBABA Act Information*
1.46" AISI 12L142 7° Unconfirmed
1.46" AISI 11L172 7° Unconfirmed

ANCHOR HEADS
Anchor Heads Size Material Authorization DateBABA Act Information*
6.250" Ø x 2.750" ASTM- A536 Gr 80-55-0612/17/1996Unconfirmed
Wedge hole angle: 6° 55'
Wedge hole diameter: 1.035"
Strand hole diameter: 0.562"

BEARING PLATES
Bearing Plates Size Material Authorization DateBABA Act Information*
9.00" Square x 7.00" (MP ) ASTM-A536 Gr 80-55-0612/17/1996Unconfirmed
Bearing hole diameter: 4 3/16"
Spiral size and turns: #4-7 turns

TRUMPETS
Trumpets Size Material Authorization DateBABA Act Information*
There are no trumpet components for this system at this time

DUCTS
Ducts Size Material Authorization DateBABA Act Information*
There are no duct components for this system at this time

SPIRAL
# 4 Rebar, 10" O.D 7 Turns @ Pitch

Caltrans contact: Jim Ma, Concrete Committee Chair, jim.ma@dot.ca.gov

*As attested to by the supplier as of April 14, 2026 per definition in 2 CFR 184 and 23 CFR 635.410. Stakeholders should use this information in conjunction with corresponding Caltrans special provision section 6-1.04 to understand applicable requirement for the project.

The California Department of Transportation (Caltrans) is implementing statutory changes required by the Bipartisan Infrastructure Law -Build America, Buy America Act (BABA), as outlined in 2 CFR 184 and 23 CFR 635.410.

https://www.fhwa.dot.gov/construction/cqit/buyam.cfm