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Concrete is very strong in compression, but weak in tension. To make it a more useful construction material, [[steel]] bars are often installed in fresh concrete, to increase the tensile strength.
Concrete is very strong in compression, but weak in tension. To make it a more useful construction material, [[steel]] bars are often installed in fresh concrete, to increase the tensile strength.
[[Category:Materials]]
[[Category:Materials]][[Category:Construction]]