Craft · 6 pages · 12 min

How rebar gives concrete something it lacks

Steel bars inside concrete carry the pulling forces that the stone-like paste cannot.

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From the opening

Rebar is steel rod cast into the concrete so the two materials share a member. The concrete carries squeezing loads, and the steel stretches and takes the pulling loads that would crack the paste. The opening covers steel takes the tension, ribs lock bar to paste, and bars must sit in the stretch.

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Inside

Steel takes the tension
Ribs lock bar to paste
Bars must sit in the stretch
Rust breaks the bond
Where the idea stops applying
A distinction worth keeping

Sources

Reinforced concrete in bending
Bond of deformed reinforcing bar

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How rebar gives concrete something it lacks

From the opening

Inside

Sources

Also on the desk