1.1 This specification covers polyolefin chopped strands (fibers) for use in concrete. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each syst This specification covers polyolefin chopped strands (fibers) for use in concrete. Tensile and tenacity properties are calculated by determining the breaking force, the breaking tenacity, and the elongation of adequately conditioned polyolefin filament