<Ul> <Li> High relative strength </Li> <Li> High toleration of tensile strain </Li> <Li> Good bond to the concrete, irrespective of pH, moisture, and similar factors </Li> <Li> Thermal compatibility, not causing unacceptable stresses in response to changing temperatures . </Li> <Li> Durability in the concrete environment, irrespective of corrosion or sustained stress for example . </Li> </Ul> <Li> High relative strength </Li> <Li> High toleration of tensile strain </Li> <Li> Good bond to the concrete, irrespective of pH, moisture, and similar factors </Li>

When did they start putting rebar in concrete