What are the Difference between Dowel Bars and Tie Bars?

Looking for the Difference between dowel bars and tie bars? Then you came to the right place. Tie bars are twisted rebars or connectors utilized for holding appearances of inflexible sections in touch to keep up total interlock. Tie bars are not a burden for moving gadgets. For example, tie bars are utilized in longitudinal joints in substantial asphalt. 

Dowel bars are smooth round bars which for the most part fill in as a burden to move gadget across substantial joints. They are put across cross over joints of substantial asphalt to permit development to occur. Where development is intentionally intended for longitudinal joints, dowel bars can be embraced. 

Difference between Dowel Bars and Tie Bars 

  • Dowel Bars is set around navigate joint at the mid-profundity of the slab while Tie Bars is set around longitudinal joints at the mid-profundity of the chunk 
  • The heap is move starting with one section then onto the next and likewise joints are kept from opening in Dowel Bars while in Tie Bars Lanes are kept from partition and differential avoidance 
  • Dowel Bars are of round, smooth, epoxy covered steel bars while Tie Bars are of disfigured epoxy covered steel. 
  • Dowel Bars can lessen joint issue and corner breaks while Dowel Bars can diminish cross over break. 
  • Dowel bars are made of gentle steel and Tie bars are for the most part made of steel. 
  • The distance across of the dowel bars is bigger in size going from 30-38 mm while the width of the tie bar is more modest in size going from 10-12mm. 
  • Dowel Bars dividing relies just on the thickness of the asphalt. The thickness of the dowel bars changes inside 300-310 mm. In Tie Bars the dispersing of the tie bars depends both upon the thickness of the asphalt and the width of the section. The thickness changes inside 550-640 mm. 
  • Dowel Bars load moving gadget from one chunk to the others while in Tie Bars it is a non burden moving gadget. 
  • While establishment of the dowel bars, its fundamental issue is it being ineffectively changed and the substantial may not be compacted as expected. While establishment of the tie bars no issue of change will emerge. 

What are Dowel bars? 

A dowel is basically a barrel shaped bar, which is made of metal, wood, or plastic. A dowel bar is for the most part composed of short round gentle steel bars used to give the mechanical association between more than one chunk associated with the bars without opposing the flat development at the joint of the bar. 

Dowel bars and Tie bars – Application and Installation and Advantages 

It can likewise be characterized as the steel support bars which are reached out dependent upon some specific length in an outlined design for future development of the substantial. 

Generally, the round steel bars are given in the substantial construction to move the heap consistently all through the design to oppose the joint development. 

Utilizations of dowel bars 

  • The use of dowel bars are as per the following: 
  • It is utilized to associate the old and the new substantial design 
  • It is utilized to associate the section at the level of the piece to interface the following segment and next chunk 
  • It is utilized to improve the exhibition of asphalt joints. It decreases the impact of burden on the asphalt joints. 
  • It is utilized to diminish the corner breaks. The disintegration of the substantial toward the edge of the construction is by and large diminished by the utilization of the dowel bars. 
  • Since it associates two chunks, which might be new and the old section, it is utilized to move the heap from one piece to the others. 


  • Since it moves the heap from one section to the others, it improves the heap conveying limit of the piece. 
  • Since it improves the presentation of the asphalt joints and likewise decreases the impact of burden in the asphalt joints, it builds the life expectancy of the asphalt. 
  • It lessens the avoidance and the pressure in the substantial. 
  • The augmentation of the construction is simple if the dowel is given. 

Determination and Installation of dowel bars 

The thickness of the asphalt decides the size of dowel bars required. The dowel bars are typically of 32 to 38 mm measurement, 460mm long, and separated a ways off of 305mm separated from one another. 

The dowel bars are either covered or composed of hardened steel to shield it from consumption. Dowel bars are consistently embedded in the mid-profundity of the piece. They are put across the cross over joint of the substantial asphalt to permit the development. 

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The extension and the compression of the neighboring chunk are nearby accordingly the dowel moves the heap. The bars are set parallelly to the centerline of the section. 

The primary issue during the establishment during the dowel bars is that the bars are inadequately changed and the substantial is ineffectively compacted. 

What are Tie bars? 

The disfigured rebars or the connector utilized for holding the unbending section in touch to make up the total interlock between the piece is known as the tie bar. 

Dowel bars and Tie bars – Application and Installation and Advantages 

It doesn’t move the heap however some of the time least burden move is accessible. It is utilized to decay the cross over breaking. It additionally stays away from the isolation and differential redirection of paths. 


  • The utilization of the tie bars are as per the following: 
  • It is utilized to decrease the cross over breaking. 
  • Tie bars are utilized in holding the essences of inflexible sections in touch to keep the substantial total interlocked. 
  • It is utilized in the plain jointed substantial asphalt to associate two paths and assists with keeping away from the partition and differential avoidance of the paths. 


  • It associates two paths. 
  • It lessens breaking. 
  • It evades detachment and differential avoidance. 
  • It maintains a strategic distance from high pressure and high redirection. 

Determination and Installation of tie bars 

The size of the tie bars relies on the thickness of the substantial surface and width of the section. The measurement of the tie bars is for the most part 12-16 mm composed of TOR steel bars. 

The length of the bar differs from 550-640 mm in size. Tie bars are embedded after one path is cleared by hand or by utilizing a tie bar installer at a time. 

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The tie bar is introduced at the mid-profundity of the chunk and bowed back till the adjoining path is ready and to be cleared. The tie bar is embedded at the section edge when slip structure pavers are utilized which makes it a longitudinal joint.

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