Vol. 11 No. 02 (2021): Journal of Materials & Construcstion
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JOURNAL OF MATERIALS & CONSTRUCTION

ISSN: 2734-9438

Website: www.jomc.vn

Study on the effects of bonded-stress between concrete and corroded rebar

Vuong Doan Dinh Thien , Hung Nguyen Dinh , Kien Dao Duy , Hung Nguyen Thanh

Keywords:

Bond- slip relationship
Corrosion
Corroded RC structures
Pull-out

Abstract

In this study, the bond stress between steel bar with a diameter of 12mmand concrete was examined with the effect of different corrosion levels and different concrete grades. A steel bar was inserted in a concrete block with a size of 20x20x20cm. The compressive strength of concrete was 25.6MPa, 35.1MPa, and 44.1MPa. These specimens were soaked into solution NalCl3.5% to accelerate the corrosion process at a different time and corrosion levels. The pull-out test was conducted. Results showed that the bond strength of the corroded steel bar was higher than that predicted from CEB-FIP [1]. Slip displacement and the range of slip displacement at the bond strength were reduced when the concrete compressive strength was increased.

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How to Cite

Doan Dinh Thien , V., Nguyen Dinh, H., Dao Duy, K., & Nguyen Thanh, H. (2021). Study on the effects of bonded-stress between concrete and corroded rebar. JOURNAL OF MATERIALS & CONSTRUCTION, 11(02), Page 28 – Page 33. https://doi.org/10.54772/jomc.v11i02.289

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