Critical Gaps in Durability Data for FRP Composites in Civil Infrastructure.
Critical Gaps in Durability Data for FRP Composites in
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
composite materials; durability; civil infrastructure;
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.