why does rebar and remesh make concrete so much stronger?
In: 48
It changes the failure of concrete from brittle to ductile failure. Something people miss in their explanations about tensile strength is that the component materials still have their individual qualities in their finished product. It does not average into an amalgam that has both qualities. This is to say that if you have two blocks made of the same concrete and one has rebar they will still crack at the same load (barring rebar at certain tensile rigidity ratios compared to the concrete). The difference is that once the concrete cracks the rebar kicks in and now the cracks form slowly. This is an important thing in engineering because a common saying is
>It’s not about if it will fail but when
And having failures occur slowly over time rather than all at once is valuable.
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