Coefficient of friction between steel and concrete??

[KeithW62]

Can anyone tell me what the coefficient of friction between steel and concrete is. Many thanks in advance for this information.
-Keith

 

[austim]

The only figure that I have seen documented is 0.5 (specified in the Australian Bridge Desigb Code).

I have used that (with a reasonable safety factor) for designing temporary support brackets stressed onto bridge piers etc, and so far it has worked for me.

 

[LLP]

ACI 318 Section 11.7.4.3 gives the coefficient of friction for several conditions.