With few exceptions, concrete slabs need to be reinforced with either rebar or re-mesh. Concrete has exceptional compressive strength. However, in relation to its compressive strength, concrete has weak tensile strength. That is to say, it is very difficult to crush concrete. It is much easier, on the other hand, to pull it apart. Compressive Strength How Concrete is Strong – The sand and crushed rock in concrete give it compressive strength. The sand and rock in concrete can support tremendous

Glass fiber reinforced concrete (GFRC)

How are concrete suspended slabs built? - Roniak Group