Reinforced concrete

<p>Reinforced concrete, also called ferroconcrete or ferro-concrete, is a <a href="/facts/Composite_material/UBysQldh">composite material</a> in which <a href="/facts/Concrete/K6whGVNx">concrete</a>'s relatively low <a href="/facts/Ultimate_tensile_strength/Cv2jPplR">tensile strength</a> and <a href="/facts/Ductility/SBJsahEk">ductility</a> are compensated for by the inclusion of reinforcement having higher tensile strength or ductility. The reinforcement is usually, though not necessarily, steel reinforcing bars (known as <a href="/facts/Rebar/qm27fUbk">rebar</a>) and is usually embedded passively in the concrete before the concrete sets. However, <a href="/facts/Prestressed_concrete/0fFlgCju">post-tensioning</a> is also employed as a technique to reinforce the concrete. In terms of volume used annually, it is one of the most common engineering materials. In <a href="/facts/Corrosion_engineering/p6RqJrK4">corrosion engineering</a> terms, when designed correctly, the alkalinity of the concrete protects the steel rebar from <a href="/facts/Corrosion/lIC7H4we">corrosion</a>.
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Reinforced concrete open-in-new

Reinforced concrete