Influence of reinforcing bar type on autogenous shrinkage stress and bond behavior of ultra high performance fiber reinforced concrete

Doo Yeol Yoo; Jung Jun Park; Sung Wook Kim; Young Soo Yoon

doi:10.1016/j.cemconcomp.2013.11.014

Influence of reinforcing bar type on autogenous shrinkage stress and bond behavior of ultra high performance fiber reinforced concrete

Doo Yeol Yoo, Jung Jun Park, Sung Wook Kim, Young Soo Yoon

Research output: Contribution to journal › Article › peer-review

158 Citations (Scopus)

Abstract

This study investigated the effects of reinforcing bar type and reinforcement ratio on the restrained shrinkage behaviors of ultra high performance fiber reinforced concrete (UHPFRC), including autogenous shrinkage stress, degree of restraint, and cracking potential. In addition, the influence of the type and embedment length of reinforcing bars on the bond behavior of UHPFRC was evaluated by performing pullout test. Three different reinforcing bars (deformed steel bar, round steel bar, and GFRP bar) were investigated in the restrained shrinkage and pullout tests. The GFRP bar exhibited the best performance in relation to the autogenous shrinkage stress, degree of restraint, and cracking potential because of its low stiffness. The highest bond strength was obtained for the deformed steel bar, and the bar yielding was observed when the bar embedment length of l_b = 2d_b was used. The round steel bar exhibited the poorest behaviors for both of the restrained shrinkage and pullout.

Original language	English
Pages (from-to)	150-161
Number of pages	12
Journal	Cement and Concrete Composites
Volume	48
DOIs	https://doi.org/10.1016/j.cemconcomp.2013.11.014
Publication status	Published - 2014 Apr

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2012R1A2A1A05026406 ) and carried out as a partial research of the “Development of construction technology for concrete floated offshore infrastructures” in the Korea Institute of Construction Technology.

Keywords

Autogenous shrinkage stress
Bond performance
Cracking potential
Degree of restraint
Reinforcing bars
Ultra high performance fiber reinforced concrete

ASJC Scopus subject areas

Building and Construction
General Materials Science

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10.1016/j.cemconcomp.2013.11.014

Cite this

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title = "Influence of reinforcing bar type on autogenous shrinkage stress and bond behavior of ultra high performance fiber reinforced concrete",

abstract = "This study investigated the effects of reinforcing bar type and reinforcement ratio on the restrained shrinkage behaviors of ultra high performance fiber reinforced concrete (UHPFRC), including autogenous shrinkage stress, degree of restraint, and cracking potential. In addition, the influence of the type and embedment length of reinforcing bars on the bond behavior of UHPFRC was evaluated by performing pullout test. Three different reinforcing bars (deformed steel bar, round steel bar, and GFRP bar) were investigated in the restrained shrinkage and pullout tests. The GFRP bar exhibited the best performance in relation to the autogenous shrinkage stress, degree of restraint, and cracking potential because of its low stiffness. The highest bond strength was obtained for the deformed steel bar, and the bar yielding was observed when the bar embedment length of lb = 2db was used. The round steel bar exhibited the poorest behaviors for both of the restrained shrinkage and pullout.",

keywords = "Autogenous shrinkage stress, Bond performance, Cracking potential, Degree of restraint, Reinforcing bars, Ultra high performance fiber reinforced concrete",

author = "Yoo, {Doo Yeol} and Park, {Jung Jun} and Kim, {Sung Wook} and Yoon, {Young Soo}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2012R1A2A1A05026406 ) and carried out as a partial research of the “Development of construction technology for concrete floated offshore infrastructures” in the Korea Institute of Construction Technology. ",

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AU - Yoon, Young Soo

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2012R1A2A1A05026406 ) and carried out as a partial research of the “Development of construction technology for concrete floated offshore infrastructures” in the Korea Institute of Construction Technology.

PY - 2014/4

Y1 - 2014/4

N2 - This study investigated the effects of reinforcing bar type and reinforcement ratio on the restrained shrinkage behaviors of ultra high performance fiber reinforced concrete (UHPFRC), including autogenous shrinkage stress, degree of restraint, and cracking potential. In addition, the influence of the type and embedment length of reinforcing bars on the bond behavior of UHPFRC was evaluated by performing pullout test. Three different reinforcing bars (deformed steel bar, round steel bar, and GFRP bar) were investigated in the restrained shrinkage and pullout tests. The GFRP bar exhibited the best performance in relation to the autogenous shrinkage stress, degree of restraint, and cracking potential because of its low stiffness. The highest bond strength was obtained for the deformed steel bar, and the bar yielding was observed when the bar embedment length of lb = 2db was used. The round steel bar exhibited the poorest behaviors for both of the restrained shrinkage and pullout.

AB - This study investigated the effects of reinforcing bar type and reinforcement ratio on the restrained shrinkage behaviors of ultra high performance fiber reinforced concrete (UHPFRC), including autogenous shrinkage stress, degree of restraint, and cracking potential. In addition, the influence of the type and embedment length of reinforcing bars on the bond behavior of UHPFRC was evaluated by performing pullout test. Three different reinforcing bars (deformed steel bar, round steel bar, and GFRP bar) were investigated in the restrained shrinkage and pullout tests. The GFRP bar exhibited the best performance in relation to the autogenous shrinkage stress, degree of restraint, and cracking potential because of its low stiffness. The highest bond strength was obtained for the deformed steel bar, and the bar yielding was observed when the bar embedment length of lb = 2db was used. The round steel bar exhibited the poorest behaviors for both of the restrained shrinkage and pullout.

KW - Autogenous shrinkage stress

KW - Bond performance

KW - Cracking potential

KW - Degree of restraint

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Influence of reinforcing bar type on autogenous shrinkage stress and bond behavior of ultra high performance fiber reinforced concrete

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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