Although post-tensioning has been a proven solution in the marketplace for almost five decades, older systems focused more on obtaining the desired prestress force and less on durability. Today, however, the industry has evolved to offer systems that deliver the desired prestress force while providing improved protection for the prestressing steel. These advancements in corrosion protection are especially important in areas that experience significant exposure and damage from freeze-thaw cycles, de-icing salts, seawater, salt spray, and other deterioration mechanisms. Many owners, designers, engineers, and contractors also are looking at post-tensioning as a solution that offers the high level of structural flexibility necessary to meet changing user requirements. With so many options and advances available today, successful implementation of a post-tensioning system depends on matching the right system to each project.
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