Prestressed Concrete Strand
High-carbon, multi-wire strand used with a tensioning force applied either before (pre-tensioned) or after (post-tensioned) installation, that results in a compressive force on the concrete, increasing the concrete’s strength. This type of strand enables the use of longer spans and/or thinner sections than required by concrete that does not have such stressed reinforcement. Strand is an attractive alternative to single wire applications because it offers more surface area as well as a geometric bonding advantage and has better flexibility.