Engineered/strain-hardening cementitious composites (ECC/SHCC) with an ultra-high compressive strength over 210 MPa

Bo Tao Huang; Ke Fan Weng; Ji Xiang Zhu; Yu Xiang; Jian Guo Dai; Victor C. Li

doi:10.1016/j.coco.2021.100775

Engineered/strain-hardening cementitious composites (ECC/SHCC) with an ultra-high compressive strength over 210 MPa

Bo Tao Huang, Ke Fan Weng, Ji Xiang Zhu, Yu Xiang, Jian Guo Dai, Victor C. Li

Research output: Journal article publication › Journal article › Academic research › peer-review

113 Citations (Scopus)

Abstract

Engineered/Strain-Hardening Cementitious Composites (ECC/SHCC) are fiber-reinforced cement-based materials with tensile strain-hardening and multiple-cracking characteristics. In this study, ultra-high-strength ECC (UHS-ECC) with a compressive strength over 210 MPa was successfully developed for the first time. The developed UHS-ECC exhibited excellent tensile strain capacity (5.2%), and fine crack width (72 μm). These characteristics were realized by combined use of polyethylene and steel fibers in a dense matrix. Two new material indices (f'_cf_tε_t index and f'_cf_tε_t/w index) were proposed to assess the overall performance of UHS-ECC. Compared with existing high-strength ECC, the developed UHS-ECC records the highest compressive strength and the best overall performance. The findings of this study provide useful knowledge for future design and applications of UHS-ECC.

Original language	English
Article number	100775
Journal	Composites Communications
Volume	26
DOIs	https://doi.org/10.1016/j.coco.2021.100775
Publication status	Published - Aug 2021

Keywords

Engineered cementitious composites (ECC)
Hybrid fiber reinforcement
Strain-hardening cementitious composites (SHCC)
Ultra-high performance concrete (UHPC)
Ultra-high strength

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Polymers and Plastics
Materials Chemistry

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10.1016/j.coco.2021.100775

Cite this

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title = "Engineered/strain-hardening cementitious composites (ECC/SHCC) with an ultra-high compressive strength over 210 MPa",

abstract = "Engineered/Strain-Hardening Cementitious Composites (ECC/SHCC) are fiber-reinforced cement-based materials with tensile strain-hardening and multiple-cracking characteristics. In this study, ultra-high-strength ECC (UHS-ECC) with a compressive strength over 210 MPa was successfully developed for the first time. The developed UHS-ECC exhibited excellent tensile strain capacity (5.2%), and fine crack width (72 μm). These characteristics were realized by combined use of polyethylene and steel fibers in a dense matrix. Two new material indices (f'cftεt index and f'cftεt/w index) were proposed to assess the overall performance of UHS-ECC. Compared with existing high-strength ECC, the developed UHS-ECC records the highest compressive strength and the best overall performance. The findings of this study provide useful knowledge for future design and applications of UHS-ECC.",

keywords = "Engineered cementitious composites (ECC), Hybrid fiber reinforcement, Strain-hardening cementitious composites (SHCC), Ultra-high performance concrete (UHPC), Ultra-high strength",

author = "Huang, {Bo Tao} and Weng, {Ke Fan} and Zhu, {Ji Xiang} and Yu Xiang and Dai, {Jian Guo} and Li, {Victor C.}",

note = "Funding Information: This study was supported by financial support received from Chinese Guangdong Province R&D Plan for Key Areas ( 2019B111107002 ), Hong Kong General Research Fund (RGC) (No. 15214517 ) and the Hong Kong Innovation and Technology Fund (No. ITS/077/18FX ). Bo-Tao Huang acknowledges the support by The Hong Kong Polytechnic University through the Research Institute for Sustainable Urban Development (No. 1-BBWE ) and the Postdoctoral Fellowships Scheme (No. YW4K ). Publisher Copyright: {\textcopyright} 2021",

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AU - Huang, Bo Tao

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AU - Xiang, Yu

AU - Dai, Jian Guo

AU - Li, Victor C.

N1 - Funding Information: This study was supported by financial support received from Chinese Guangdong Province R&D Plan for Key Areas ( 2019B111107002 ), Hong Kong General Research Fund (RGC) (No. 15214517 ) and the Hong Kong Innovation and Technology Fund (No. ITS/077/18FX ). Bo-Tao Huang acknowledges the support by The Hong Kong Polytechnic University through the Research Institute for Sustainable Urban Development (No. 1-BBWE ) and the Postdoctoral Fellowships Scheme (No. YW4K ). Publisher Copyright: © 2021

PY - 2021/8

Y1 - 2021/8

N2 - Engineered/Strain-Hardening Cementitious Composites (ECC/SHCC) are fiber-reinforced cement-based materials with tensile strain-hardening and multiple-cracking characteristics. In this study, ultra-high-strength ECC (UHS-ECC) with a compressive strength over 210 MPa was successfully developed for the first time. The developed UHS-ECC exhibited excellent tensile strain capacity (5.2%), and fine crack width (72 μm). These characteristics were realized by combined use of polyethylene and steel fibers in a dense matrix. Two new material indices (f'cftεt index and f'cftεt/w index) were proposed to assess the overall performance of UHS-ECC. Compared with existing high-strength ECC, the developed UHS-ECC records the highest compressive strength and the best overall performance. The findings of this study provide useful knowledge for future design and applications of UHS-ECC.

AB - Engineered/Strain-Hardening Cementitious Composites (ECC/SHCC) are fiber-reinforced cement-based materials with tensile strain-hardening and multiple-cracking characteristics. In this study, ultra-high-strength ECC (UHS-ECC) with a compressive strength over 210 MPa was successfully developed for the first time. The developed UHS-ECC exhibited excellent tensile strain capacity (5.2%), and fine crack width (72 μm). These characteristics were realized by combined use of polyethylene and steel fibers in a dense matrix. Two new material indices (f'cftεt index and f'cftεt/w index) were proposed to assess the overall performance of UHS-ECC. Compared with existing high-strength ECC, the developed UHS-ECC records the highest compressive strength and the best overall performance. The findings of this study provide useful knowledge for future design and applications of UHS-ECC.

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Engineered/strain-hardening cementitious composites (ECC/SHCC) with an ultra-high compressive strength over 210 MPa

Abstract

Keywords

ASJC Scopus subject areas

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