An experiment study on the impact resistance of RC members with reinforcement corrosion

Research output: Contribution to journalConference article

Abstract

To evaluate the remaining service life and determine the appropriate timing and method for repair and reinforcement for the reinforced concrete (RC) structures, it is important to quantitatively evaluate the residual load capacity of RC structures deteriorated by rebar corrosion due to chloride attack or neutralization. There have been many studies on the load capacity during static loadings. However, for disaster-prone areas, the evaluation of the residual load should be conducted also against the dynamic and impact loads. In this study, RC slab specimens and RC beam specimens with reinforcement corrosion is prepared with electrolytic corrosion. To clarify the impact resistance of the RC members with rebar corrosion, a falling weight impact experiment is conducted on the RC beam specimens and a medium velocity impact test is conducted on the RC slab specimens. Based on the experimental results, the relationship between the degree of deterioration and impact resistance is clarified.

Original languageEnglish
JournalProceedings of the Annual International Conference on Architecture and Civil Engineering
Issue number216379
DOIs
Publication statusPublished - Jan 1 2018
Event6th Annual International Conference on Architecture and Civil Engineering, ACE 2018 - Singapore , Singapore
Duration: May 14 2018May 15 2018

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Impact resistance
Reinforced concrete
Reinforcement
Corrosion
Experiments
Concrete slabs
Concrete construction
Electrochemical corrosion
Service life
Disasters
Deterioration
Repair

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction

Cite this

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title = "An experiment study on the impact resistance of RC members with reinforcement corrosion",
abstract = "To evaluate the remaining service life and determine the appropriate timing and method for repair and reinforcement for the reinforced concrete (RC) structures, it is important to quantitatively evaluate the residual load capacity of RC structures deteriorated by rebar corrosion due to chloride attack or neutralization. There have been many studies on the load capacity during static loadings. However, for disaster-prone areas, the evaluation of the residual load should be conducted also against the dynamic and impact loads. In this study, RC slab specimens and RC beam specimens with reinforcement corrosion is prepared with electrolytic corrosion. To clarify the impact resistance of the RC members with rebar corrosion, a falling weight impact experiment is conducted on the RC beam specimens and a medium velocity impact test is conducted on the RC slab specimens. Based on the experimental results, the relationship between the degree of deterioration and impact resistance is clarified.",
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AU - Lu, Chi

AU - Sonoda, Yoshimi

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N2 - To evaluate the remaining service life and determine the appropriate timing and method for repair and reinforcement for the reinforced concrete (RC) structures, it is important to quantitatively evaluate the residual load capacity of RC structures deteriorated by rebar corrosion due to chloride attack or neutralization. There have been many studies on the load capacity during static loadings. However, for disaster-prone areas, the evaluation of the residual load should be conducted also against the dynamic and impact loads. In this study, RC slab specimens and RC beam specimens with reinforcement corrosion is prepared with electrolytic corrosion. To clarify the impact resistance of the RC members with rebar corrosion, a falling weight impact experiment is conducted on the RC beam specimens and a medium velocity impact test is conducted on the RC slab specimens. Based on the experimental results, the relationship between the degree of deterioration and impact resistance is clarified.

AB - To evaluate the remaining service life and determine the appropriate timing and method for repair and reinforcement for the reinforced concrete (RC) structures, it is important to quantitatively evaluate the residual load capacity of RC structures deteriorated by rebar corrosion due to chloride attack or neutralization. There have been many studies on the load capacity during static loadings. However, for disaster-prone areas, the evaluation of the residual load should be conducted also against the dynamic and impact loads. In this study, RC slab specimens and RC beam specimens with reinforcement corrosion is prepared with electrolytic corrosion. To clarify the impact resistance of the RC members with rebar corrosion, a falling weight impact experiment is conducted on the RC beam specimens and a medium velocity impact test is conducted on the RC slab specimens. Based on the experimental results, the relationship between the degree of deterioration and impact resistance is clarified.

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