rebar

Examples of rebar in the following topics:

• Reinforced Concrete Construction

  • The reinforcement in the case of concrete is usually, though not always, steel reinforcing bars known as rebar, and is usually embedded passively in the concrete before the concrete sets.
  • Modern reinforced concrete can contain varied reinforcing materials made of steel, polymers, or alternate composite material which may or may not be used with rebar.
  • When rebar corrodes, the rust expands and tends to flake, cracking the concrete and unbonding the rebar from the concrete.
  • Cracking of the concrete is normally the result of an inadequate quantity of rebar, or rebar spaced at too great a distance.
  • There is growing interest in application of external reinforcement of existing structures with advanced materials such as composite (fiberglass, basalt, carbon) rebar, that can impart exceptional strength.