278 Atlas Bearing™ Neoprene Gaskets

MATERIAL/SUBSTRATE:
Neoprene (CR)
DUROMETER/HARDNESS (SHORE A) [ASTM D2240]:
50
TENSILE STRENGTH [ASTM D412]:
2250 min. psi
ELONGATION [ASTM D412]:
300% min.
COMPRESSION SET 22 HOURS @ 212°F [ASTM D395B]:
35% max.
DUROMETER/HARDNESS CHANGE AFTER HEAT AGING 70 HOURS @ 212°F [ASTM D573]:
+15
ELONGATION CHANGE AFTER HEAT AGING 70 HOURS @ 212°F [ASTM D573]:
-40% max
OZONE 100 PPHM, 20% STRAIN 100 HOURS @ 104°F [ASTM D1149]:
NO CRACKS
TENSILE CHANGE AFTER HEAT AGING 70 HOURS @ 212°F [ASTM 573]:
-15% max

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Product Overview

Bearing pads are designed to evenly transfer the load from the beams to the supports in bridge bearing and structural applications. 

TYPICAL APPLICATIONS

  • Pre-cast and pre-stressed concrete
  • Buildings with structural steel beams/steel reinforced concrete
  • Industrial machinery/heavy equipment foundations
  • Railway tie pads
  • Buildings, arenas, tunnels, infrastructure

PRODUCT FEATURES & BENEFITS

  • Shock and vibration isolation
  • Meets AASHTO standard specification for plain and laminated elastomeric bridge bearing pads, M251-06, polyisoprene, grade 2.
  • Meets AASHTO LRFD bridge construction specification, section 18.2.