Concrete Properties
- Strength:
- Precast, release: 5 ksi
- Precast, 28 days: 6 ksi
- Cast-in-place topping, 28 days: 3.5 ksi
- Density, all concrete: 150 pcf
Strand Properties
- Strand Type: 1/2 - 270 K - Low relaxation (Es = 28,000 ksi).
- Two-point depressed pattern, depression point at 0.4L.
Rebar Properties
Grade 60 rebar
Prestress Loss Information
- Calculation Method: AASHTO LFD
- Hours to release: 18
- Relative humidity: 75%
Dead Load
On precast: 0.180 klf, due to stay-in -place forms
Additional Dead Load
On composite: 0.0305 ksf (applied over 51.0 ft), due to future wearing surface
