423.4R-98: Corrosion and Repair of Unbonded Single Strand Tendons

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Title: 423.4R-98: Corrosion and Repair of Unbonded Single Strand Tendons

Author(s):

Publication: Technical Documents

Volume:

Issue:

Appears on pages(s): 20

Keywords: prestressed concrete

Date: 2/23/1998

Abstract:

Note: A newer version of this document exists. This document was replaced by 423.4R-14.

This report gives general information regarding the evaluation corrosion damage in structures reinforced with unbonded single strand post-tensioning tendons. Historical development of these parts on the building code dealing with durability and corrosion protection is explained. Evolution of the types and components of unbonded tendons is described. Specific aspects of corrosion in unbonded single strand tendons are described, and common problems in structures reinforced with these tendons are discussed. Methods are presented for repairing, replacing, and supplementing tendons.