Rapid Jacketing Technique by Using UHP-SHCC for Damaged RC Column under Seismic Loading

  • M. Kunieda
  • Y. Umeda
  • N. Ueda
  • H. Nakamura
Part of the RILEM State of the Art Reports book series (RILEM, volume 2)

Abstract

This paper introduces a rapid jacketing technique for RC column, which involves spraying UHP-SHCC. Any formwork and/or additional reinforcement are not needed. The technique may be helpful in reducing construction time and cost. Cyclic loading tests were conducted for the column specimens repaired by UHP-SHCC and ordinary polymer cement mortar. It was confirmed experimentally that the developed technique using UHP-SHCC improve not only ultimate load but also ductility of recovered specimen. It seems that the prevention of buckling of longitudinal reinforcement, which was constrained by UHP-SHCC, imparts the mechanical improvement to the column specimens.

Keywords

Compressive Strength Initial Loading Cover Concrete Longitudinal Reinforcement Repair Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • M. Kunieda
    • 1
  • Y. Umeda
    • 1
  • N. Ueda
    • 1
  • H. Nakamura
    • 1
  1. 1.Dept. of Civil EngineeringNagoya UniversityJapan

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