Evaluation and Repair of Unbonded Post-Tensioned Concrete Structures

by Randall W. Poston, KCI Technologies, Inc, Manassas, United States,

Document Type: Proceeding Paper

Part of: Innovation in Repair Techniques of Concrete Structures


As with other forms of infrastructure, there is an ever increasing need to repair and strengthen unbonded post-tensioned concrete structures. Repairs may be necessitated for a variety of reasons ranging from a change in space requirements to deterioration of concrete and corrosion of post-tensioning components. Although most unbonded post-tensioned concrete structures have good long-term performance records, corrosion problems have occurred because of poor construction practices, poor quality plastic sheathing, lack of good-quality corrosion inhibiting grease and poor end anchorage and stand extension protection. With as background, techniques and procedures to evaluate and repair unbonded post-tensioned concrete structures are presented.

Subject Headings: Tension | Tensile structures | Ultimate strength | Structural strength | Strength of materials | Concrete | Concrete construction | Plastics

Services: Buy this book/Buy this article


Return to search