Post Peak Behavior of Carbonated Concrete Structure - A Case Study of the Former Shime Mining Office Vertical Derrick in Japan

Kaiting Su, Kei Ichi Imamoto, Takafumi Noguchi, Manabu Kanematsu, Hitoshi Hamasaki, Kohji Teranishi, Chizuru Kiyohara, Munenori Yamada

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

1 Citation (Scopus)

Abstract

This paper is a report on the investigation results of the Former Shime Mining Office Vertical Derrick, which was built in 1943 and was 75 years old at the time of the investigation. The building suffered from serious deterioration including rebar corrosion, which led to large area of concrete spalling. In this report, aggregation data of concrete spalling has been presented along with the investigation results of cover thickness. According to the investigation results, concrete spalling occurred in places where cover thickness was less than 25 mm. And According to the aggregation data, concrete spalling flakes increased by approximately 200 pieces per year, with the average size of 10 cm in diameter. Also, a possible relation between concrete spalling and rainfall was observed during the investigation. Equations using the proportion of wet area affected by rainfall to estimate the area of spalling are proposed, although the value of empirical coefficientaneeds further discussion, including collecting data from other buildings where spalling occurs.

Original languageEnglish
Title of host publicationCurrent Topics and Trends on Durability of Building Materials and Components - Proceedings of the 15th International Conference on Durability of Building Materials and Components, DBMC 2020
EditorsCarles Serrat, Joan Ramon Casas, Vicente Gibert i Armengol
PublisherInternational Center for Numerical Methods in Engineering
Pages1063-1070
Number of pages8
ISBN (Electronic)9788412110180
DOIs
Publication statusPublished - 2020
Event15th International Conference on Durability of Building Materials and Components, DBMC 2020 - Virtual, Online, Spain
Duration: 2020 Oct 202020 Oct 23

Publication series

NameCurrent Topics and Trends on Durability of Building Materials and Components - Proceedings of the 15th International Conference on Durability of Building Materials and Components, DBMC 2020

Conference

Conference15th International Conference on Durability of Building Materials and Components, DBMC 2020
Country/TerritorySpain
CityVirtual, Online
Period20/10/2020/10/23

Keywords

  • Concrete moisture
  • Concrete spalling
  • Durability
  • Historical buildings
  • Rebar corrosion

ASJC Scopus subject areas

  • Materials Science(all)
  • Civil and Structural Engineering
  • Building and Construction

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