Prestress loss and bending capacity of pre-cracked 40 year-old PC beams exposed to marine environment

Amry Dasar, Rita Irmawaty, Hidenori Hamada, Yasutaka Sagawa, Daisuke Yamamoto

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)


Six prestressed concrete beams (PC beam) were used for evaluation, consist of four post-tension beams (PC-O) and two pre-tension beams (PC-R). In order to investigate the effect of crack on prestress loss and bending capacity after long-term exposed, prestressed concrete beams were pre-crack and then exposed to marine environment. Experimental work was carried out to evaluate PC beams performance after long-term exposed. In addition, visual observations and load bearing capacity test was carried out. Furthermore, evaluation of prestress loss conducted using three-point loading bending test and the remaining tendon forces in the beam were determined using Crack Re-opening Method. The experimental results revealed that prestress loss was increased due to corrosion of strand/wire which affected by the pre-crack on the prestressed beams. Approximately a prestress loss around 26% and 30% was recorded for post-tension and pre-tension beams respectively.

Original languageEnglish
Article number02008
JournalMATEC Web of Conferences
Publication statusPublished - Apr 1 2016
Event3rd International Conference on Civil and Environmental Engineering for Sustainability, IConCEES 2015 - Melaka, Malaysia
Duration: Dec 1 2015Dec 2 2015

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Engineering(all)


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