Long-Term Post-Tensioned Column Exposure Test Specimens: Final Evaluation

摘要

Post-tensioned concrete piers or columns may be exposed to very severe environments affecting their long-term durability. Two main exposure conditions are of special interest: partially submerged structures in sea water and structures exposed to deicing salts. The durability study of post-tensioned columns or vertical concrete elements under these conditions has unique characteristics. In order to provide detailed observations to improve the durability design of columns under these exposure conditions, a research study was started with the dual intent to evaluate how to use post-tensioning to improve corrosion protection and how to protect the post-tensioning systems from corrosion damage.