Specification for Carbon and Glass Fiber-Reinforced Polymer Bar Materials for Concrete Reinforcement (ACI 440.6M-08)

Description

1.1This specification describes permitted constituent materials, limits on constituent volumes, and minimum performance requirements for carbon and glass fiber-reinforced polymer (FRP) bars to be used as reinforcement for non prestressed concrete.

1.2 Only carbon and glass FRP bars are covered by thisspecification.

1.3 FRP bars made of more than one fiber type (hybrid FRP) are not covered by this specification.

1.4 Pultruded FRP bars with no external surface enhance-ment (that is, plain or smooth bars) to facilitate bond with concrete are not covered by this specification. Similarly, hollow FRP bars are not considered due to lack of documented performance as reinforcement for concrete.

1.5 Plain FRP bars used as dowels (that is, devices thattransfer shear across concrete joints) where the intendedfunction requires slip of the dowel are not covered by thisspecification.

1.6 This specification does not cover premanufacturedgrids and gratings made with FRP materials. FRP matsresulting from assembly of deformed FRP bars, however, arecovered by this document.

1.7 This specification does not cover FRP bars when used forexternal and near-surface-mounted strengthening applications.

1.8 The text of this specification references notes and foot-notes that provide explanatory material. These notes andfootnotes (excluding those in tables and figures) shall not beconsidered as requirements of the specification.