Concrete Creep Shrinkage: fib_MC2010#creep_coefficient#80pct#3000psi#I
Concrete creep and shrinkage parameters per ACI 209R-92 and fib Model Code 2010 — creep coefficients and shrinkage strains at varying humidity, V/S ratio, loading age, concrete strength, and cement type
| model param rh | vs loading key | cement type | concrete strength psi (psi) | creep coefficient phi (dimensionless) | loading age days (day) | model | notes | parameter type | relative humidity pct (percent) | time after loading days (day) | volume to surface ratio in (inch) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| fib_MC2010#creep_coefficient#80pct#3000psi#I | 3in#28d#365t | I | 3,000 | 1.35 | 28 | fib_MC2010 | RH=80%: phi_RH correction greatly reduces drying creep; phi_bc(28)~0.6 remains | creep_coefficient | 80 | 365 | 3 |
| fib_MC2010#creep_coefficient#80pct#3000psi#I | 3in#7d#365t | I | 3,000 | 1.66 | 7 | fib_MC2010 | Combined: early loading + high humidity; phi_dc nearly eliminated at RH=80% | creep_coefficient | 80 | 365 | 3 |
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