Nondestructive inspection of reinforced concrete reefs submersed in seawater

Ho-Sang Kim; Chang-Gil Kim; Jinho Woo; Won-Bae Na

doi:10.1117/12.715406

11 April 2007 Nondestructive inspection of reinforced concrete reefs submersed in seawater

Ho-Sang Kim, Chang-Gil Kim, Jinho Woo, Won-Bae Na

Proceedings Volume 6532, Health Monitoring of Structural and Biological Systems 2007; 65321B (2007) https://doi.org/10.1117/12.715406
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

The physical deterioration of reinforced concrete reefs, which were fully immersed in Tongyeong waters of South Korea for 19, 21, 23, and 25 years, respectively, were investigated. Firstly, the marine environmental factors such as sea temperature, salinity, pH, dissolved oxygen, sea bottom materials, and water depth of target water sites were observed from 1997 to 2002. Secondly, four reinforced concrete reefs recovered from different sites in Tongyeong waters were tested through various nondestructive tools such as visual inspection, composition test, tensile strength test, compressive strength test, absorption rate and apparent density test, and pore volume test. Thirdly, those test results are analyzed to see the physical deteriorations. Based on the observations and test results, it is shown that, in global, the reinforced concrete reefs have sound physical properties and their originally estimated service life is secured enough for a further service period in the water depth of 28 to 32 m.

Citation Download Citation

Ho-Sang Kim, Chang-Gil Kim, Jinho Woo, and Won-Bae Na "Nondestructive inspection of reinforced concrete reefs submersed in seawater", Proc. SPIE 6532, Health Monitoring of Structural and Biological Systems 2007, 65321B (11 April 2007); https://doi.org/10.1117/12.715406

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