Neoprene (polychloroprene) bearing pads, AASHTO-grade, are elastic pads used between bridge beams, structural steel, and precast or prestressed concrete. The AASHTO M251-06 Grade 2 & 3 plain elastomeric bearing pads are used, which always transmit vertical loads, accommodate thermal movement, and enable rotation and shear deformation.
The elastomeric bridge borne pads are the economical answer for most bridge construction projects, with no moving parts, vibration damping, and AASHTO LRFD standard requirements.
Benefits of Using Neoprene AASHTO Bearing Pads
- Durability & chemical resistance – made from virgin neoprene for long-lasting performance, resisting ozone, weather, and oils.
- Load distribution – allows for even distribution of loads from superstructure to substructure.
- Accommodation of thermal movement – shear deformation allows for smooth contraction and thermal expansion.
- Shock and vibration damping – neoprene pads reduce dynamic forces, enhancing structural life.
- Ease of installation – available in standard or custom sizes, cut for quick deployment.
Elastomer Types & Standards
- Durometer reading: Shore A 50, 60, or 70 (AAS
- Plain vs. laminated: The plain elastomeric pads satisfy routine requirements; laminated ones (steel or cloth-reinforced) have more compressive strength and support more rotation.
- Temperature range: –40 °F to +200 °F (up to +220 °F for some ne
- Compliant with: AASHTO M251, AASHTO LRFD Bridge Construction, Caltrans, military specs
Why Partner with Hanna Rubber in Kansas City?
- Local sourcing & quick turnaround – dodge long lead times and meet tight project deadlines.
- Production according to your design – pads are machine-made from your designs.
- Technical expertise – our employees are experienced in AASHTO-recommended thickness, durometer, and
- Quality assurance – pads which resist compression set, ozone cracking, and high temperatures.
10 FAQs: Selecting the Right Bearing Pad
What thickness should I select?
Choose from load, pad area, and durometer for each AASHTO spec. Heavier rotations take thicker pads; for resistance against bulging, thinner plain pads are recommended.
When is Shore A 50, 60, or 70 needed?
For high rotation/deflection, Shore 50; for all-purpose, Shore 60; for high loads or for high-temperature application, Shore 70
Do I need reinforced or laminated pads?
Choose plain pads for normal loads; laminated (steel/fabric) for additional compressive strength, rotation, and shearing demands.
Do neoprene pads resist high temperatures?
Yes—normal pads operate from –40 °F to +200 °F, grade-specific up to +220
What compressive loads can they support?
As high as ~800–1000 psi for typical pads; high-strength pads are above that range.
What is vibration absorption?
The elastomeric characteristics of neoprene tend to internally dampen shock and vibration.
Neoprene pads resist chemicals.
yes—oil, ozone, weather, and chemical resistant
Is thermal expansion accommodated?
Yes—shear deflection allows for pad allowance for contraction/expansion
How are pads made and sized?
Pre-cut or made-to-order on a per-structure-drawing basis, with fast lead times, pads are available.
What are they checking against?
Manufactured to AASHTO M251, LRFD Bridge Construction specifications, Caltrans, and military specifications for reinforced pads.
Final Thoughts
Neoprene and elastomeric AASHTO bearing pads are a bridge and building construction cornerstone—offering strength, flex, and performance on a budget. Hanna Rubber, as a hometown Kansas City supplier, ensures that you get the right pad on time, made to your specifications and in all applicable structural codes. Call Hanna Rubber today and receive a fast, personalized estimate on your distinct project needs!