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Prestress/Post-Tensioning Strand Systems

Schwager Davis Incorporated

SDI 2.6A (Standard)

Last edit date: 3/20/2024

GENERAL
Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
2 0.6" 234 3500 N/A

WEDGES
Wedges Length Material Wedge Parts Wedge Angle Wedge Inside DiameterBABA Act Information*
1.77" AISI 12L142 7° O.D. 1.13"Unconfirmed
1.77" AISI 11L172 7° O.D. 1.13"Unconfirmed

ANCHOR HEADS
Anchor Heads Size Material Authorization DateBABA Act Information*
3.25" x 6.75" x 2.0" A536 Gr.80-55-068/8/2012Unconfirmed
Wedge hole angle:
Wedge hole diameter:
Strand hole diameter:

BEARING PLATES
Bearing Plates Size Material Authorization DateBABA Act Information*
4.375" x 1.8125" x 2.5625" Grout Cap - Nylon 6, G.F. Black8/8/2012Unconfirmed
Bearing hole diameter:
Spiral size and turns:

TRUMPETS
Trumpets Size Material Authorization DateBABA Act Information*
8.0" HDPE8/8/2012Unconfirmed

DUCTS
Ducts Size Material Authorization DateBABA Act Information*
2" Ø metalUnconfirmed

SPIRAL
NOTES: Local zone reinforcement: 2 pairs of #3 stirrups (4 total)

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