Concrete Strength Development
Concrete Strength Development
(OP)
We need to strike some formworks early and lift the concrete beams into place.
The concrete is standard 40N/mm2 concrete but it only needs to achieve 15N/mm2 for the lift.
Does anyone know what the equation is for the strength development curve, or have a reference for one?
Thanks
The concrete is standard 40N/mm2 concrete but it only needs to achieve 15N/mm2 for the lift.
Does anyone know what the equation is for the strength development curve, or have a reference for one?
Thanks





RE: Concrete Strength Development
Posting this in "Structural engineering other topics" and "Bridge engineering" will generate more responses.
RE: Concrete Strength Development
Beware of the size effect. The cube is a small volume of concrete and does not get the same heat of hydration that a large cast may get. Hence keep the cubes in their moulds with the top sealed with the cast concrete and insulated to achieve the same temperature.
StephenA