Armored Expansion Joint System

Description:
The expansion joint system consists of a heavy-duty steel edge member and a rugged sealing element. The development principle adopted in the system insures that a positive mechanical pressure is maintained at all times between the edge member and sealing element. The system can easily accommodate the high loads of vehicular traffic while effectively sealing expansion joints in bridges and structures with movements up to 175 mm (6-7/8 inches).
Features and Benefits:

Versatility: Fabricated with various steel edge member configurations

Mechanical Clamping System: The mechanical clamping system provides a superior attachment mechanism

Watertight: The continuous elastomeric gland prevents runoff water from passing through to the substructure

Ease of installation: The elastomeric gland can be easily installed or replaced.
Recommended for:

Sealing of joints on bridges and parking decks

Reconstruction of joints in existing structures

Skewed joints.
Technical data:

Steel Edge Members      It incorporates a fabrication, which consists of standard components. The top locking lug is continuously submerged and arc welded to the steel section.  The clamping pressure plate is connected to the steel section by stainless steel hardware and the Bonafy spring washer. It can be fabricated with various steel edge member configurations to allow the designer to incorporate the system into a variety of applications. The steel retainers provide a basis for greater movement potential. 

Elastomeric Gland      The continuous elastomeric sealing element can handle movements up to 175mm (6-7/8 inches). Each of the glands are available in both natural rubber and neoprene. Specially designed premoulded directional change sections are available for the PS-100 gland.

Mechanical Clamping System      The upper corner-locking lug is continuously welded by submerged arc welding process to a rugged steel angle. The pressure clamping plate is continuously rolled. Both sections are hot dip galvanized and locked together with stainless steel hardware and pressure generating Bonafy spring washers, producing the superior mechanical clamping system. The pressure clamping plate and hardware are protected by the continuous sealing element.

Ease of Installation     It permits ease of seal installation or replacement through the flexure of the time Bonafy spring washers. This system avoids the tolerance problems prevalent in press fit systems and eliminates any need to dismantle or loosen bolting hardware. The continuous elastomeric element offers twice the leak-proofing protection by being bonded to the steel edge members and then mechanically locked into place. The elastomeric seal is easily placed in non-spliced continuous lengths in either the factory of the field. Specially designed premolded intersection seal components eliminate the need for splicing at the critical and often leaky intersection points

Movement table: