Tensile Strength of concrete
Tensile Strength of concrete
(OP)
can anybody tell me a reference where I can get the tensile strength of concrete after 3 days of curing. thanks.
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Tensile Strength of concrete
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RE: Tensile Strength of concrete
Also, tensile strength is more variable than compressive strength. While there is a relationship between the two, in my experience I've seen the tensile strength be more variable.
I'm curious as to why this is important at 3 days. Are you concerned about direct tension or modulus of rupture for flexure?
You can also do a splitting tensile test on cylinders molded for compressive strength.
RE: Tensile Strength of concrete
min steel ratio = fct3 / fy
fct3 = the principal tensile strength of concrete at three days.
anybody have an idea where to get this value? i cant find it here in the code...
RE: Tensile Strength of concrete
For 30 MPa mix, ultimate tensile would be about 3 MPa and at 3 days, about 1.5 MPa.
These are rough correlations that can be found in most of the literature (for example, A.M. Neville...any edition)
hokie66, RE, BigH....check me on this!
RE: Tensile Strength of concrete
RE: Tensile Strength of concrete
RE: Tensile Strength of concrete
In my experience the variations are higher than those for cylinders or pavers that are tested on at a controlled loading rate.
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.