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Description: Neoprene Bearing Pads are molded or cut from a molded sheet of high-grade, new neoprene synthetic rubber compounds.

Use: As economical efficient bering plates for pre-cast, pre-stressed concrete or steel beams in bridges and buildings. Neoprene Pads permit a smooth and uniform transfer of load from the beam to the substructure and allow beam rotation at the bearing due to deflection of the beam under load. They further allow lateral and longitudinal movement of the beam caused by thermal forces. Neoprene Pads have no movable parts and thermal expansion and contraction are absorbed by the pad's ability to give and take in shear. There is no sliding motion between pad and beam or between pad and abutment.


Compressive Stress/Strain of Steel-Reinforced Neoprene Bearings.

Materials: The material specification for the elastomeric bearing shall meet the requiremnts of the current AASHTO M 251 (Standard specifications for laminated elastomeric bridge bearings) as listed under subsections "Materials" and "Test".

Fabrication: Elastomeric bearings shall be composed of multiple laminates of elastomeric material separated by steel reinforcing. Bearings have steel plates as the reinforcement shall be cast as a unit in a mold under pressure and heat and the steel plates separating the elastomeric layers shall be completely bonded by vulcanization to the elastomeric material on all surfaces. An external load bearing steel plate(s) shall be factory vulcanized to the elastomeric bearings during the primary molding process.













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