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Proper Spec of Neoprene Bearing Pad

Proper Spec of Neoprene Bearing Pad

Proper Spec of Neoprene Bearing Pad

(OP)
I am specifying a set of neoprene bearing pads for a small bridge span. I am not used to using this material and need to know what the proper way is to call out the pad on the drawings. I am assuming I need the outside dimensions, thickness, and hardness of the neoprene. Is there some kind of industry standard for how to call this out though?

RE: Proper Spec of Neoprene Bearing Pad

Check with the State Department of Transportation in the state where the bridge is to be located. They will have a specification for this material and their standard drawing details will likely have a typical call-out for it.

Attached is the standard detail for bearing pads from the Florida DOT...


 

RE: Proper Spec of Neoprene Bearing Pad

ASTM D2000 has a line call out system.  It looks something like this:

ASTM D2000 M2BG714 B14 EA14

You have to look at the ASTM to figure out what all of the letters mean.

RE: Proper Spec of Neoprene Bearing Pad

AASHTO M-251 Material Specification

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