Reduce the whole-life-costing of your asphaltic plug joints from an average of 8 years to 12 years, saving over 35% on your maintenance costs. The Permatrack Heavy Duty Bridge Expansion Jointing System is manufactured using the same Permatrack high modulus material that meets the BBA Agrément (HAPAS) Certificate number 02/H072.

The table below shows a direct comparison between the Permatrack Heavy Duty Bridge Expansion Jointing System and the requirements of the asphaltic plug joint as stipulated by the Highways Agency document BA 26/94. As can be seen, the Permatrack Heavy Duty Bridge Expansion Jointing System exceeds the Highway Agency BA 26/94 stipulations in many areas ensuring that our system is the ideal choice for these extreme situations.
BA 26/94 Section Area/notes Specified (for standard asphaltic plug joint) Permatrack Heavy Duty Bridge Expansion Jointing System Standard Asphaltic Plug Expansion Joint
4.7 Nominal Joint width. Should not exceed nominal 500mm wide.
No upper width restriction; Permatrack HD Bridge Exp Joint has been installed upto 3.0m in width No more than 500mm
  Impact and abrasions. Asphaltic plug joint should not be specified where heavy impact and abrasions will occur.
Permatrack HD Expansion Joint can be installed in all areas where heavy impact and abrasions are expected. Cannot be installed in these areas.
  Installed depth range. not less than 100 mm
Permatrack HD expansion joint can be installed from 40mm depth to over 350mm. Standard asphaltic plug joint can be no less than 100mm deep
  Gradients/Cross falls. Should not be used on gradients or cross falls.
Most common inclined surfaces as found on slip roads are acceptable as the Permatrack High Modulus material binder does not flow through the aggregate causing bulging. Not recommended.
  Width of joint. Maximum of 500mm nominal suggested.
There are no upper limits including extra wide adjacent double joints; e.g. 3.0m wide. Maximum of 500mm suggested.
  Movement of Joint

The impact/effect of movement outside the stated measurements is either N/A, (L)ow, (M)edium or (H)igh.

  • Thermal 40mm
  • Dynamic > 0.10
  • Vertical > 4
  • Traffic > 50
  • Axle Load > 40
(4 out of 5)
  • Thermal - Low
  • Dynamic - Low
  • Vertical - Low
  • Traffic - Low
  • Axle Load - Low
 
  • Thermal - Med
  • Dynamic - Low
  • Vertical - Med
  • Traffic - Med
  • Axle Load - Med
  Installation Temperature.
  • <10
  • 10-15
  • >15
  • <10 - Low
  • 10-15 - Low
  • >15 - Low
 
  • <10 - Low
  • 10-15 - Low
  • >15 - Med
 
  In service weathering. Low effect
 Low
Low
  Detritus & Corrosion. Low effect
 Low
Low
  Site preparation & workmanship High effect
 Low
Medium
 7.2 Inspection and maintenance. Asphaltic plug joints often require top-up.
 
 
Permatrack High Modulus joints are classed as being of low maintenance, being rut resistant they maintain their applied anti-skid properties for as long as is expected from the adjacent road surface. Last upto 50% longer than standard plug joints. Often require replacement or top-up within 8 years.
7.3 Drainage.   Drainage can be installed for easy roding and cleaning.  
7.4 Life Expentancy. 8 yrs
12 yrs 8 yrs

 

During carriageway re-surfacing the top surface of the Permatrack High Modulus is simply planed off to the desired thickness of the re-instatement, and re-cast afterwards without the whole joint requiring replacement.

We have several installations where the old asphaltic plug has been milled out by 60mm depth and we have overlaid these with our system. This has been very cost effective in as much as the existing bridge deck gap plates or sub-drainage have not been disturbed.

In several circumstances we exceed the standard BD 33/94 – in addition to the Highways Agency Statement of Registration, number 028, Permatrack High Modulus has British Board of Agrément, (HAPAS) approval for use as an inlaid crack-sealing system for highways.

For further details please us the contact us page to phone, fax or email us.