# Creep coefficient over time

I came across 2 creep coefficient diagram. First one is from Eurocode, second one is from elsewhere. I think the second one make sense, As the time progress, the creep coefficient shall increase, hence, the effetive modulus of concrete shall decrese. Can someone explain it ? I am confused.

• I think you need to define what are the axes represent in the Euro Code. The second graph seems to indicate that with time increases (x-axis), the shrinkage rate increases (y-axes). – r13 May 4 at 16:00

You are looking at a diagram for an infinite duration of loading, which is noted by the $$\infty$$-symbol. For a limited duration of loading, refer EN 1992-1-1 annex B.1.
Just for clarity, the time shown on the first diagram, $$t_0$$, is the concrete age when loading starts, which is why the creep coefficient decreases with increasing $$t_0$$.