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

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

175 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 (ƒ'_cƒ_tε_t index and ƒ'_cƒ_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. © 2021 Elsevier Ltd. All rights reserved.

Original language	English
Article number	100775
Journal	Composites Communications
Volume	26
Online published	8 May 2021
DOIs	https://doi.org/10.1016/j.coco.2021.100775
Publication status	Published - Aug 2021
Externally published	Yes

Funding

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 ).

Research Keywords

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

RGC Funding Information

RGC-funded

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10.1016/j.coco.2021.100775

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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 (ƒ'cƒtεt index and ƒ'cƒtεt/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. {\textcopyright} 2021 Elsevier Ltd. All rights reserved.",

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

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

year = "2021",

month = aug,

doi = "10.1016/j.coco.2021.100775",

language = "English",

volume = "26",

journal = "Composites Communications",

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TY - JOUR

T1 - Engineered/strain-hardening cementitious composites (ECC/SHCC) with an ultra-high compressive strength over 210 MPa

AU - Huang, Bo-Tao

AU - Weng, Ke-Fan

AU - Zhu, Ji-Xiang

AU - Xiang, Yu

AU - Dai, Jian-Guo

AU - Li, Victor C.

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 (ƒ'cƒtεt index and ƒ'cƒtεt/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. © 2021 Elsevier Ltd. All rights reserved.

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 (ƒ'cƒtεt index and ƒ'cƒtεt/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. © 2021 Elsevier Ltd. All rights reserved.

KW - Engineered cementitious composites (ECC)

KW - Hybrid fiber reinforcement

KW - Strain-hardening cementitious composites (SHCC)

KW - Ultra-high performance concrete (UHPC)

KW - Ultra-high strength

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85105740397&origin=recordpage

U2 - 10.1016/j.coco.2021.100775

DO - 10.1016/j.coco.2021.100775

M3 - RGC 21 - Publication in refereed journal

AN - SCOPUS:85105740397

SN - 2452-2139

VL - 26

JO - Composites Communications

JF - Composites Communications

M1 - 100775

ER -

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

Abstract

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Research Keywords

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