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What's the range of friction factor between steel and concrete?

What's the range of friction factor between steel and concrete?

What's the range of friction factor between steel and concrete?

(OP)
Hi,
  I met a problem,which needs to know the friction factor between steel and concrete. I used 0.4, but someone said it's the maximum value and not saft for calculation.So I wonder the range. Does anyone know it?

Thank you!

Rock Li

RE: What's the range of friction factor between steel and concrete?

Hi,
I used to hear about it: somebody here in Italy make the assumption that the contact is similar to steel-to-sanded-steel, i.e. 0.3 (following old norm UNI-ISO 10011, for example). I know nothing more precise.

Regards

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