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Prestress/Post-Tensioning Strand Systems

Avar Construction Systems, Incorporated

MP 7.5 / 4.6

Last edit date: 3/20/2024

GENERAL
Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
4 0.6" 234 5500 N/A

WEDGES
Wedges Length Material Wedge Parts Wedge Angle Wedge Inside DiameterBABA Act Information*
1.80" AISI 12L142 0.62"Unconfirmed
1.80" AISI 12L143 0.62"Unconfirmed
1.80" AISI 11L172 0.62"Unconfirmed
1.80" AISI 11L173 0.62"Unconfirmed

ANCHOR HEADS
Anchor Heads Size Material Authorization DateBABA Act Information*
4.5" Ø x 2.75" thick ASTM A536 Grade 80-55-06 (ACS 4.6)Unconfirmed
Wedge hole angle: 6° 55' ± 10'
Wedge hole diameter: 1.16"
Strand hole diameter: 0.68"

BEARING PLATES
Bearing Plates Size Material Authorization DateBABA Act Information*
6.5" Square x 5.25" thick ASTM A536 Grade 80-55-06Unconfirmed
Bearing hole diameter: 2 3/8"
Spiral size and turns: none

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*
2.25" O.D. Unconfirmed

SPIRAL
Spiral OD 8", #3 Bar, Spiral ID 7.25"

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