Concrete Creep Shrinkage: ACI_209#creep_coefficient#60pct#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) | correction factor humidity (dimensionless) | correction factor loading age (dimensionless) | correction factor member size (dimensionless) | creep coefficient phi (dimensionless) | loading age days (day) | model | notes | parameter type | relative humidity pct (percent) | time after loading days (day) | ultimate creep coefficient (dimensionless) | volume to surface ratio in (inch) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ACI_209#creep_coefficient#60pct#3000psi#I | 3in#14d#365t | I | 3,000 | 1.07 | 1.11 | 0.86 | 1.66 | 14 | ACI_209 | Combined effect: 14-day loading + 60% RH | creep_coefficient | 60 | 365 | 2.01 | 3 |
| ACI_209#creep_coefficient#60pct#3000psi#I | 3in#28d#365t | I | 3,000 | 1.07 | 1 | 0.86 | 1.49 | 28 | ACI_209 | gamma_c_lambda=1.27-0.67*0.60=0.868; time-ratio at t=365 days approx 0.97 | creep_coefficient | 60 | 365 | 2.35 | 3 |
| ACI_209#creep_coefficient#60pct#3000psi#I | 3in#7d#365t | I | 3,000 | 1.07 | 1.25 | 0.86 | 1.87 | 7 | ACI_209 | Combined effect: early loading + moderate humidity | creep_coefficient | 60 | 365 | 2.27 | 3 |
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ACI_209#creep_coefficient#40pct#3000psi#I3 rowsACI_209#creep_coefficient#80pct#3000psi#I2 rowsACI_209#shrinkage_strain#40pct#3000psi#I3 rowsACI_209#shrinkage_strain#60pct#3000psi#I2 rowsACI_209#shrinkage_strain#80pct#3000psi#I2 rowsfib_MC2010#creep_coefficient#40pct#3000psi#I3 rowsfib_MC2010#creep_coefficient#60pct#3000psi#I3 rowsfib_MC2010#creep_coefficient#80pct#3000psi#I2 rowsfib_MC2010#shrinkage_strain#40pct#3000psi#I3 rows