Construction Materials And Testing2D
Concrete Technology - Theory & Concepts
Properties of fresh and hardened concrete, mix design, and testing methods.
Open the complete lessonACI Strength Gain Profile
Adjust curing age and target 28-day strength to observe concrete compressive strength gain over time.
Curing Time (t)7 days
Day 1Day 90
Target 28-Day Strength (f'c,28)30 MPa
Low Strength (20)High Strength (60)
Note: Standard concrete specifications use the 28-day compressive strength () as the design basis, at which hydration is assumed to be mostly stable.
ACI 209 Curve: Strength (MPa) vs Time (Days)
Loading chart...