Development of ultra-high performance engineered cementitious composites using polyethylene (PE) fibers

Ke Quan Yu, Jiang Tao Yu, Jian Guo Dai*, Zhou Dao Lu, Surendra P. Shah

*Corresponding author for this work

Research output: Contribution to journalArticle

122 Scopus citations

Abstract

Ultra-high performance engineered cementitious composites (UHP-ECC), which combines the strain-hardening and multiple crack characteristics and the high strength of mortar matrix, was investigated in this study. The tensile strength and elongation of the UHP-ECC achieved were 20 MPa and 8.7%, respectively. For the production of UHP-ECC, ultra-high-molecular-weight polyethylene (PE) fibers were deployed to reinforce the ultra-high strength mortar while special attention was paid to the mix process to ensure satisfactory fiber dispersion. The tensile stress-strain curves, the compressive strength and elastic modulus, and the flexural behavior of UHP-ECC were investigated to understand its mechanical performance. The digital image correlation (DIC) technique was utilized to monitor the crack patterns of UHP-ECC during the tensile and flexural tests. In addition, Scanning electron microscope (SEM) analysis was conducted to achieve an in-depth understanding of the microstructure of UHP-ECC.

Original languageEnglish (US)
Pages (from-to)217-227
Number of pages11
JournalConstruction and Building Materials
Volume158
DOIs
StatePublished - Jan 15 2018

Keywords

  • High ductility
  • High strength
  • Multiple cracks
  • Strain hardening cementitious composites
  • Ultra-high strength mortar

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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