Published: Jan 1990
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Expansion joint systems play an important role in extending the life of bridges. Elastomeric concrete's use as an end dam or transition area material for casting expansion joints into bridge decks dates back to 1979 in the United States. While the concept has been widely successful, problems have surfaced with increased usage. Particular attention must be paid to blockout preparation, mixing of components, placement, and quality control for an elastomeric concrete installation to be successful. Recommendations for materials properties have been made which will hopefully serve as a basis for the development of an ASTM standard specification.
elastomeric concrete, transition area, end dam, header material, sinusoidal anchorage, strip seal, blockout, bridge expansion joint
Vice president, Watson Bowman Acme Corp., Amherst, New York