Home Technology Concrete Rebar Prestressed/Post-Tensioned Reinforcement Explained

Concrete Rebar Prestressed/Post-Tensioned Reinforcement Explained

Reinforced concrete is a composite material in which concrete’s relatively low tensile strength and ductility are counteracted by the inclusion of reinforcement having higher tensile strength or ductility.

source/image(PrtSc): Practical Engineering

More destructive testing to answer your questions about concrete.Concrete’s greatest weakness is its tensile strength, which can be less than 10% of its compressive strength. Watch the video from Practical Engineering for more info:

So, we often reinforce it to create a composite material strong against all types of stress. This video briefly touches on conventional rebar and prestressed/post-tensioned reinforcement.


The reinforcement is usually, though not necessarily, steel reinforcing bars (rebar) and is usually embedded passively in the concrete before the concrete sets.