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Prestress/Post-Tensioning Strand Systems

Avar Construction Systems, Incorporated

ACS 24.5

Last edit date: 3/20/2024

GENERAL
Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
24 1/2" 991.2 3500 743.4

WEDGES
Wedges Length Material Wedge Parts Wedge Angle Wedge Inside DiameterBABA Act Information*
1.46" AISI 11L172 7° ± 10' 0.529"Unconfirmed

ANCHOR HEADS
Anchor Heads Size Material Authorization DateBABA Act Information*
8 1/4" Square x 3 1/2" C 1040-1045 H.R. Plate3/26/1992Unconfirmed
Wedge hole angle: 7°
Wedge hole diameter: 1.035"
Strand hole diameter: 0.62"

BEARING PLATES
Bearing Plates Size Material Authorization DateBABA Act Information*
15 1/2" Square x 2" ASTM A-363/26/1992Unconfirmed
Bearing hole diameter: 7 1/4"
Spiral size and turns: none

TRUMPETS
Trumpets Size Material Authorization DateBABA Act Information*
22" 3/26/1992Unconfirmed

DUCTS
Ducts Size Material Authorization DateBABA Act Information*
4" O.D Unconfirmed

SPIRAL
-

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