Title: Inspection of Unbonded Post-Tensioning Tendons for Building Structures

Author(s): Raymond Messer and Enrique Vaca

Publication: Concrete International

Volume: 38

Issue: 10

Appears on pages(s): 45-50

Keywords: placement, stressing, blowout, corrosion

DOI:

Date: 10/1/2016

Abstract:
Current building codes require unbonded tendons to be fully encapsulated to provide improved corrosion resistance. To minimize construction problems, ensure design compliance, and eliminate or minimize failure mechanisms and tendon placement issues, all unbonded tendons have to be inspected. Tendon handling and placement considerations, concrete blowouts, corrosion-induced failures, and personnel qualifications are covered.