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Critical Gaps in Durability Data for FRP Composites in Civil Infrastructure.


pdf icon Critical Gaps in Durability Data for FRP Composites in Civil Infrastructure. (1444 K)
Karbhari, V. M.; Chin, J. W.; Reynaud, D.

Bridging the Centuries With SAMPE's Materials and Processes Technology. Science of Advanced Materials and Process Engineering Series. Society for the Advancement of Materials and Process Engineering (SAMPE), 45th International SAMPE Symposium and Exhibition. Volume 45. Proceedings. May 21-25, 2000, Long Beach, CA, 549-563 pp, 2000.

Keywords:

composite materials; durability; civil infrastructure; gas analysis

Abstract:

Although fiber reinforced polymer (FRP) composites are increasingly being used for the renewal of civil infrastructure, there are still some major questions related to the durability of these materials in a civil engineering environment. This concern is emphasized since the structures are primarily load bearing and are expected to be in service, without substantial inspection or maintenance, for extended time periods (75+ years). This paper presents a synopsis of the results of a gap analysis study undertaken under the aegis of the Civil Engineering Research Foundation (CERF) and the Materials Development Alliance (MDA) to identify critical gaps in data needed for such applications. The study focuses on areas of internal reinforcement, external strengthening, seismic retrofit, bridge decks, structural profiles and panels. Environments of interest are moisture/solution, alkalinity, creep/relaxation, fatigue, fire, thermal effects (including freeze-thaw) and UV-exposure. Materials use guidelines are presented and a set of recommendations for use and further research/data collection are discussed.