Abstract
Applications of fiber-reinforced polymer (FRP) composites as reinforcement
for concrete structures have been growing rapidly in recent years.
ACI Committee 440 has published design guidelines for internal FRP
reinforcement, externally bonded FRP reinforcement for strengthening,
prestressed FRP reinforcement, and test methods for FRP products.
Although these guidelines exist, new products and applications continue
to be developed. Thus, this report summarizes the current state of
knowledge on these materials and their application to concrete and
masonry structures. The purpose of this report is to act as an introduction
to FRP materials in areas where ACI guides exist, and to provide
information on the properties and behavior of concrete structures
containing FRP in areas where guides are not currently available.
If an ACI guide is available, the guide document supersedes information
in this report, and the guide should always be followed for design
and application purposes. ACI Committee 440 is also in the process
of developing new guides and thus the current availability of guides
should be checked by the reader. In addition to the material properties
of the constituent materials (that is, resins and fibers) and products,
current knowledge of FRP applications, such as internal reinforcement
including prestressing, external strengthening of concrete and masonry
structures, and structural systems, is discussed in detail. The document
also addresses durability issues and the effects of extreme events,
such as fire and blast. A summary of some examples of field applications
is presented
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