Effect of shrinkage-reducing admixture on biaxial flexural behavior of ultra-high-performance fiber-reinforced concrete

Doo Yeol Yoo, Jihwan Kim, Goangseup Zi, Young Soo Yoon

    Research output: Contribution to journalArticlepeer-review

    46 Citations (Scopus)

    Abstract

    This study aims to investigate the effect of shrinkage-reducing admixture (SRA) on the mechanical properties of ultra-high-performance fiber-reinforced concrete (UHPFRC). Three different SRA to cement weight ratios (0%, 1%, and 2%) were considered using the UHPFRC including 2% of smooth steel fibers by volume. The specimen without SRA exhibited the best performance in almost all aspects of the mechanical behaviors in compression, fiber pullout, and biaxial flexure including load carrying capacity, strain capacity, and energy absorption capacity (pullout energy and toughness). The mechanical performances deteriorated with the increase in the amount of SRA up to 2%. Finally, a suggestion was made to define the first cracking point of deflection-hardening UHPFRC under biaxial flexure stress.

    Original languageEnglish
    Pages (from-to)67-75
    Number of pages9
    JournalConstruction and Building Materials
    Volume89
    DOIs
    Publication statusPublished - 2015 Apr 22

    Bibliographical note

    Publisher Copyright:
    © 2015 Elsevier Ltd. All rights reserved.

    Keywords

    • Biaxial flexure
    • Compression
    • Fiber pullout
    • Shrinkage-reducing admixture
    • Toughness
    • Ultra-high-performance fiber-reinforced concrete

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Building and Construction
    • General Materials Science

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