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Pro118-4

Grouted Post-Tensioning Evaluation and Corrosion Mitigation



Author(s): Liao Haixue
Paper category: Proceedings
Book title: Proceedings of the 71st RILEM Annual Week & ICACMS 2017,Chennai,India, 3rd -8th September 2017
Editor(s): Manu Santhanam
Ravindra Gettu
Radhakrishna G. Pillai
Sunitha K. Nayar
ISBN: 978-2-35158-196-4
ISBN: 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9:
Publisher: Published by RILEM Publications S.A.R.L.
Publication year: 2017
Pages: 232-237
Total Pages: 6
Language : English


Abstract: Water bleeding and grout segregation from conventional Portland cement grout and improper
grout practice have created pockets of voids and soft grouts, and water/moisture in many
bridges. Water or sufficient moisture presence and corrosive ion concentration have caused
corrosion in the tendons. A cost-effective corrosion mitigation technique has been developed
to minimize the corrosion of post-tensioned (PT) tendons and extend the service life of
bridges which have grout issues. This paper describes techniques to evaluate post-tensioning
tendons, the development and implementation of this technique on grouted PT tendons in
segmental bridges, including the Ringling Bridge (Sarasota, Florida (FL)), the I-95 / I-295
Interchange in Jacksonville, FL and the I-4 Connector in Tampa, FL.


Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00


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