What is tie bar in civil engineering

Tie bars

Tie bars are deformed rebars or connectors used for holding faces of rigid slabs in contact to maintain aggregate interlock. Tie bars are not load transferring device. For instance, tie bars are used in longitudinal joints at mid depth of concrete pavement. Generally it is made of epoxy coated steel. 

Advantages of using Tie bars in pavement:-

  • It prevents the lanes from separation 
  • To avoid the differential settlement between two lanes 
  • It also reduces the transverse cracking

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