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Prepared by the Civil Engineering Research Foundation.

This report provides the results of a study on what is known and not known about the use of fiber-reinforced polymer (FRP) composites as a material for civil infrastructure. As FRP composites are increasingly used, the lack or inaccessibility of data related to the their durability is proving to be a major obstacle to widespread acceptance and implementation of these materials. This report provides the results of a "gap analysis" to identify critical areas in which data is needed to assist with specific applications. It does not purport to be a comprehensive guide to data for purposes of design, but rather serves as a guide to topics of specific interest and as a indicator of need for further collection, validation, and dissemination of data.