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 publicationJournal articleAcademic researchpeer-review

9 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'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.

Original languageEnglish
Article number100775
JournalComposites Communications
Volume26
DOIs
Publication statusPublished - 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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