Concrete Coring Test Specimen
Concrete Coring Test Specimen
(OP)
For an existing foundation, if a core to be broken for strength values is taken with rebar included, does the presence of the rebar (#3 to #5) lower the possible capacity of the test specimen?
To me, it would seem best, if not mandatory, to have no included steel in the test matrix.
For petrographic analysis, though, it would seem that the presence of rebar would not be a negative issue, but might actually enhance the visual analysis for the presence of bond and bleed water channels.
Thoughts?
To me, it would seem best, if not mandatory, to have no included steel in the test matrix.
For petrographic analysis, though, it would seem that the presence of rebar would not be a negative issue, but might actually enhance the visual analysis for the presence of bond and bleed water channels.
Thoughts?
Mike McCann, PE, SE (WA)






RE: Concrete Coring Test Specimen
Agree here also but you might contact a petro analysis guy to verify.
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RE: Concrete Coring Test Specimen
RE: Concrete Coring Test Specimen
Mike McCann, PE, SE (WA)
RE: Concrete Coring Test Specimen
Agree with all the above. I've tested both ways. Depending on the orientation and location of the rebar, it can either increase the compressive strength or screw up the stress distibution in the same and give you whacky results.
Agree that it shouldn't be in the test specimen if it can be avoided for strength purposes. OK for petrography.
RE: Concrete Coring Test Specimen
Mike McCann, PE, SE (WA)