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Advances in Civil Engineering
Volume 2014, Article ID 970393, 16 pages
Research Article

Case Study of Remaining Service Life Assessment of a Cooling Water Intake Concrete Structure in Indonesia

Civil Engineering Diploma Program, Institut Teknologi Sepuluh Nopember (ITS), Surabaya 60111, Indonesia

Received 8 August 2014; Revised 10 October 2014; Accepted 10 October 2014; Published 11 November 2014

Academic Editor: Andreas Kappos

Copyright © 2014 M. Sigit Darmawan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper deals with the assessment of remaining service life of a cooling water intake concrete structure (CWICS) subjected to corrosion due to chloride attacks. Field and laboratory tests were performed to determine the current existing condition of the structure. Both destructive and nondestructive tests were employed to obtain the parameter needed for the assessment. Based on the current condition and test results, structural analysis was carried out and the remaining safety factor of CWICS was determined. From the analysis, it was found that most concrete elements of CWICS had safety factor greater than unity and might fulfil its intended service life up to the year 2033. However, fewer elements require immediate strengthening to extend their service life.