A study on the method for evaluating the performance of cover concrete to resist the rebar corrosion in RC structure

K. Shimozawa, M. Nagayama, Kei-ichi Imamoto, J. Yamasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Durability of reinforced concrete structure depends on the quality of the concrete cover that inhibits the rebar corrosion in concrete. Hence, for evaluating the performance of concrete cover to resist the rebar corrosion in concrete, authors proposed “Drill-PR method” using the permeability velocity and resistivity measured by the hole drilled in the surface of concrete. In this paper, several kinds of concrete were prepared for an experimental study on the application of Figg’s intrusive method and resistivity test method (Wenner method) to the Drill-PR method. The Student’s t-statistical analysis of the test results indicates a good capability of the air-permeability by Figg’s intrusive method for evaluating the performance of concrete cover to resist the rebar corrosion. It was also known that the resistivity test method was significantly affected by the water cement ratio, moisture content of concrete and relative humidity. Based on the results of these experiments, authors proposed a classification for the performance of concrete cover to resist the rebar corrosion in concrete.

Original languageEnglish
Title of host publicationLife-Cycle of Structural Systems
Subtitle of host publicationDesign, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
EditorsMitsuyoshi Akiyama, Hitoshi Furuta, Dan M. Frangopol
PublisherCRC Press/Balkema
Pages1182-1188
Number of pages7
ISBN (Print)9781138001206
Publication statusPublished - 1 Jan 2015
Event4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 - Tokyo, Japan
Duration: 16 Nov 201419 Nov 2014

Publication series

NameLife-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014

Conference

Conference4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
CountryJapan
CityTokyo
Period16/11/1419/11/14

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Shimozawa, K., Nagayama, M., Imamoto, K., & Yamasaki, J. (2015). A study on the method for evaluating the performance of cover concrete to resist the rebar corrosion in RC structure. In M. Akiyama, H. Furuta, & D. M. Frangopol (Eds.), Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 (pp. 1182-1188). (Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014). CRC Press/Balkema.