A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers

Gwang Hee Heo; Jong Gun Park; Hyung Min Jun; Dong Ju Seo; Sung Gon Koh

doi:doi:10.11648/j.ajce.20200806.11

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A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers

Gwang Hee Heo, Jong Gun Park, Hyung Min Jun, Dong Ju Seo, Sung Gon Koh

Published in American Journal of Civil Engineering (Volume 8, Issue 6)

Received: 29 October 2020 Accepted: 12 November 2020 Published: 19 November 2020

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Abstract

In the present study, an experiment was conducted to investigate the mechanical properties such as fluidity, compressive strength and flexural performance (flexural strength and toughness) of a single fiber-reinforced mortar (FRM) using only macro steel fiber (SF) or micro carbon fiber (CF) with different material properties and SF-CF hybrid FRM using a mixture of macro SF and micro CF. The specimens incorporated macro SF and micro CF in the mix proportions of 100-0%, 75-25%, 50-50%, 25-75% and 0-100% by volume at a total fiber volume fraction of 1.0%. Their mechanical properties were further compared and reviewed with the plain mortar at 28 days of age. The experimental results of fresh mortar showed that the table flow of mortar using only macro SF was slightly reduced compared to plain mortar, whereas the table flow of mortar using only micro CF and SF-CF hybrid mortar decreased significantly with increase of micro CF. It was revealed from the test of the hardened mortar that the SF-CF=75-25% (M3) specimen showed the highest compressive and flexural strength, and the SF-CF=50-50% (M6) specimen obtained the highest flexural toughness. Therefore, it was possible to confirm the synergistic reinforcement effect of that enhanced the strength and improved the flexural performance by hybrid of macro SF and micro CF. Based on the results of this experiment, the optimal mix proportion of SF-CF hybrid FRM is proposed in this paper to improve the compressive strength, flexural strength and flexural toughness.

Published in	American Journal of Civil Engineering (Volume 8, Issue 6)
DOI	10.11648/j.ajce.20200806.11
Page(s)	128-138
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Macro Steel Fiber, Micro Carbon Fiber, Hybrid Fiber-Reinforced Mortar, Flexural Performance, Fluidity

References

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APA Style

Gwang Hee Heo, Jong Gun Park, Hyung Min Jun, Dong Ju Seo, Sung Gon Koh. (2020). A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers. American Journal of Civil Engineering, 8(6), 128-138. https://doi.org/10.11648/j.ajce.20200806.11

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ACS Style

Gwang Hee Heo; Jong Gun Park; Hyung Min Jun; Dong Ju Seo; Sung Gon Koh. A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers. Am. J. Civ. Eng. 2020, 8(6), 128-138. doi: 10.11648/j.ajce.20200806.11

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AMA Style

Gwang Hee Heo, Jong Gun Park, Hyung Min Jun, Dong Ju Seo, Sung Gon Koh. A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers. Am J Civ Eng. 2020;8(6):128-138. doi: 10.11648/j.ajce.20200806.11

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@article{10.11648/j.ajce.20200806.11,
  author = {Gwang Hee Heo and Jong Gun Park and Hyung Min Jun and Dong Ju Seo and Sung Gon Koh},
  title = {A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers},
  journal = {American Journal of Civil Engineering},
  volume = {8},
  number = {6},
  pages = {128-138},
  doi = {10.11648/j.ajce.20200806.11},
  url = {https://doi.org/10.11648/j.ajce.20200806.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20200806.11},
  abstract = {In the present study, an experiment was conducted to investigate the mechanical properties such as fluidity, compressive strength and flexural performance (flexural strength and toughness) of a single fiber-reinforced mortar (FRM) using only macro steel fiber (SF) or micro carbon fiber (CF) with different material properties and SF-CF hybrid FRM using a mixture of macro SF and micro CF. The specimens incorporated macro SF and micro CF in the mix proportions of 100-0%, 75-25%, 50-50%, 25-75% and 0-100% by volume at a total fiber volume fraction of 1.0%. Their mechanical properties were further compared and reviewed with the plain mortar at 28 days of age. The experimental results of fresh mortar showed that the table flow of mortar using only macro SF was slightly reduced compared to plain mortar, whereas the table flow of mortar using only micro CF and SF-CF hybrid mortar decreased significantly with increase of micro CF. It was revealed from the test of the hardened mortar that the SF-CF=75-25% (M3) specimen showed the highest compressive and flexural strength, and the SF-CF=50-50% (M6) specimen obtained the highest flexural toughness. Therefore, it was possible to confirm the synergistic reinforcement effect of that enhanced the strength and improved the flexural performance by hybrid of macro SF and micro CF. Based on the results of this experiment, the optimal mix proportion of SF-CF hybrid FRM is proposed in this paper to improve the compressive strength, flexural strength and flexural toughness.},
 year = {2020}
}

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TY  - JOUR
T1  - A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers
AU  - Gwang Hee Heo
AU  - Jong Gun Park
AU  - Hyung Min Jun
AU  - Dong Ju Seo
AU  - Sung Gon Koh
Y1  - 2020/11/19
PY  - 2020
N1  - https://doi.org/10.11648/j.ajce.20200806.11
DO  - 10.11648/j.ajce.20200806.11
T2  - American Journal of Civil Engineering
JF  - American Journal of Civil Engineering
JO  - American Journal of Civil Engineering
SP  - 128
EP  - 138
PB  - Science Publishing Group
SN  - 2330-8737
UR  - https://doi.org/10.11648/j.ajce.20200806.11
AB  - In the present study, an experiment was conducted to investigate the mechanical properties such as fluidity, compressive strength and flexural performance (flexural strength and toughness) of a single fiber-reinforced mortar (FRM) using only macro steel fiber (SF) or micro carbon fiber (CF) with different material properties and SF-CF hybrid FRM using a mixture of macro SF and micro CF. The specimens incorporated macro SF and micro CF in the mix proportions of 100-0%, 75-25%, 50-50%, 25-75% and 0-100% by volume at a total fiber volume fraction of 1.0%. Their mechanical properties were further compared and reviewed with the plain mortar at 28 days of age. The experimental results of fresh mortar showed that the table flow of mortar using only macro SF was slightly reduced compared to plain mortar, whereas the table flow of mortar using only micro CF and SF-CF hybrid mortar decreased significantly with increase of micro CF. It was revealed from the test of the hardened mortar that the SF-CF=75-25% (M3) specimen showed the highest compressive and flexural strength, and the SF-CF=50-50% (M6) specimen obtained the highest flexural toughness. Therefore, it was possible to confirm the synergistic reinforcement effect of that enhanced the strength and improved the flexural performance by hybrid of macro SF and micro CF. Based on the results of this experiment, the optimal mix proportion of SF-CF hybrid FRM is proposed in this paper to improve the compressive strength, flexural strength and flexural toughness.
VL  - 8
IS  - 6
ER  -

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Author Information

Gwang Hee Heo

Department of International Civil and Plant Engineering, Konyang University, Nonsan, Republic of Korea
Jong Gun Park

Public Safety Research Center (PSRC), Konyang University, Nonsan, Republic of Korea
Hyung Min Jun

Department of Disaster and Safety Engineering, Konyang University, Nonsan, Republic of Korea
Dong Ju Seo

Moowang Construction, Iksan, Republic of Korea
Sung Gon Koh

Department of Cadastre & Civil Engineering, Jeonju Vision College, Jeonju, Republic of Korea

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APA Style

Gwang Hee Heo, Jong Gun Park, Hyung Min Jun, Dong Ju Seo, Sung Gon Koh. (2020). A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers. American Journal of Civil Engineering, 8(6), 128-138. https://doi.org/10.11648/j.ajce.20200806.11

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ACS Style

Gwang Hee Heo; Jong Gun Park; Hyung Min Jun; Dong Ju Seo; Sung Gon Koh. A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers. Am. J. Civ. Eng. 2020, 8(6), 128-138. doi: 10.11648/j.ajce.20200806.11

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AMA Style

Gwang Hee Heo, Jong Gun Park, Hyung Min Jun, Dong Ju Seo, Sung Gon Koh. A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers. Am J Civ Eng. 2020;8(6):128-138. doi: 10.11648/j.ajce.20200806.11

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@article{10.11648/j.ajce.20200806.11,
  author = {Gwang Hee Heo and Jong Gun Park and Hyung Min Jun and Dong Ju Seo and Sung Gon Koh},
  title = {A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers},
  journal = {American Journal of Civil Engineering},
  volume = {8},
  number = {6},
  pages = {128-138},
  doi = {10.11648/j.ajce.20200806.11},
  url = {https://doi.org/10.11648/j.ajce.20200806.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20200806.11},
  abstract = {In the present study, an experiment was conducted to investigate the mechanical properties such as fluidity, compressive strength and flexural performance (flexural strength and toughness) of a single fiber-reinforced mortar (FRM) using only macro steel fiber (SF) or micro carbon fiber (CF) with different material properties and SF-CF hybrid FRM using a mixture of macro SF and micro CF. The specimens incorporated macro SF and micro CF in the mix proportions of 100-0%, 75-25%, 50-50%, 25-75% and 0-100% by volume at a total fiber volume fraction of 1.0%. Their mechanical properties were further compared and reviewed with the plain mortar at 28 days of age. The experimental results of fresh mortar showed that the table flow of mortar using only macro SF was slightly reduced compared to plain mortar, whereas the table flow of mortar using only micro CF and SF-CF hybrid mortar decreased significantly with increase of micro CF. It was revealed from the test of the hardened mortar that the SF-CF=75-25% (M3) specimen showed the highest compressive and flexural strength, and the SF-CF=50-50% (M6) specimen obtained the highest flexural toughness. Therefore, it was possible to confirm the synergistic reinforcement effect of that enhanced the strength and improved the flexural performance by hybrid of macro SF and micro CF. Based on the results of this experiment, the optimal mix proportion of SF-CF hybrid FRM is proposed in this paper to improve the compressive strength, flexural strength and flexural toughness.},
 year = {2020}
}

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TY  - JOUR
T1  - A Study on the Mechanical Properties of the Hybrid Fiber-Reinforced Mortar Using the Macro Steel and Micro Carbon Fibers
AU  - Gwang Hee Heo
AU  - Jong Gun Park
AU  - Hyung Min Jun
AU  - Dong Ju Seo
AU  - Sung Gon Koh
Y1  - 2020/11/19
PY  - 2020
N1  - https://doi.org/10.11648/j.ajce.20200806.11
DO  - 10.11648/j.ajce.20200806.11
T2  - American Journal of Civil Engineering
JF  - American Journal of Civil Engineering
JO  - American Journal of Civil Engineering
SP  - 128
EP  - 138
PB  - Science Publishing Group
SN  - 2330-8737
UR  - https://doi.org/10.11648/j.ajce.20200806.11
AB  - In the present study, an experiment was conducted to investigate the mechanical properties such as fluidity, compressive strength and flexural performance (flexural strength and toughness) of a single fiber-reinforced mortar (FRM) using only macro steel fiber (SF) or micro carbon fiber (CF) with different material properties and SF-CF hybrid FRM using a mixture of macro SF and micro CF. The specimens incorporated macro SF and micro CF in the mix proportions of 100-0%, 75-25%, 50-50%, 25-75% and 0-100% by volume at a total fiber volume fraction of 1.0%. Their mechanical properties were further compared and reviewed with the plain mortar at 28 days of age. The experimental results of fresh mortar showed that the table flow of mortar using only macro SF was slightly reduced compared to plain mortar, whereas the table flow of mortar using only micro CF and SF-CF hybrid mortar decreased significantly with increase of micro CF. It was revealed from the test of the hardened mortar that the SF-CF=75-25% (M3) specimen showed the highest compressive and flexural strength, and the SF-CF=50-50% (M6) specimen obtained the highest flexural toughness. Therefore, it was possible to confirm the synergistic reinforcement effect of that enhanced the strength and improved the flexural performance by hybrid of macro SF and micro CF. Based on the results of this experiment, the optimal mix proportion of SF-CF hybrid FRM is proposed in this paper to improve the compressive strength, flexural strength and flexural toughness.
VL  - 8
IS  - 6
ER  -

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