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ConcreteGgranite skin friction

ConcreteGgranite skin friction

ConcreteGgranite skin friction

(OP)
I have a footing that is siting on granite. Do to the large uplift loads I plan on having them drill into the granite and place a few dowles then fill the holes up with concrete or grout. I am trying to figuire out what type of strength (skin friction) between the rock and concrete interface. Does any one have a reference or simialr situation that could point me in the right direction?

RE: ConcreteGgranite skin friction

if uplift loads are large, you are not planning to use the rock anchors to counter the loads. just curious  

RE: ConcreteGgranite skin friction

(OP)
amanpreet,

Yes, that is exactly what I would like to do.  

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