Sentinel™ EMR expansion joint system

The Sentinel™ EMR Expansion Joint System is a Type 6 surface, mounted mechanical system that incorporates a central elastomeric seal inserted into two steel carrier rails. The carrier rails have special sinusoidal shaped reinforcements welded to the rear face, which locks the carrier rails into the Sentinel™ Nosing Mortar. The Sentinel™ EMR Expansion Joint system has been developed to withstand heavy volume trafficking on bridges and viaducts.


  • Highways Agency SA1 Registered
  • Allows horizontal movement of up to 150mm
  • Waterproof
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