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Bond strength between Type 2 Non-Shrink Grout and Pipe Duct

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Struc_Shah

Struc_Shah

Civil/Environmental
Mar 15, 2021
1
In a case where there's a tensile force on a rebar passing through a 3" dia grouted hole, with the hole being 11" long, what bond strength can I assume between the pipe duct and the grout? The pipe duct has a 1/8" corrugations spaced at 1/2".
 
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Won't the rebar/grout interface govern before the grout/sleeve interface.

What rebar dia shall be used?

Here is what PCI Design Handbook 7th Edition has:

sleeve_qvtg6y.png


Note 12" MINIMUM length.
 
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I generally use 25 to 50 psi for grout bond strength.

 
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