Influence of fiber reinforcement on strength and toughness of all-lightweight concrete

Jisun Choi, Goangseup Zi, Shinichi Hino, Kohei Yamaguchi, Soye Kim

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)

Abstract

The effect of fiber reinforcement on all-lightweight concrete in which both fine and coarse aggregates are artificially lightweight was investigated experimentally. Three different fibers (i.e., steel, vinylon and polyethylene) were compared for their effects on the compressive strength, splitting tensile strength, flexural strength, shear strength, and toughness. Normal concrete with the same compressive strength as the all-lightweight concrete was prepared as a reference. Using 1.5% vinylon fibers significantly improved the flexural strength of the all-lightweight concrete 234% higher than that of normal concrete. Using 1.2% steel fiber increased the fracture toughness of the all-lightweight concrete more than twelve times.

Original languageEnglish
Pages (from-to)381-389
Number of pages9
JournalConstruction and Building Materials
Volume69
DOIs
Publication statusPublished - 2014 Oct 30

Bibliographical note

Funding Information:
This work was financially supported in part by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2013R1A1A2064017 ) and the Korea University Grant. This research was also supported by a grant (13RDRP-B066780) from the Regional Development Research Program funded by Ministry of Land, Infrastructure and Transport of Korea government.

Keywords

  • All-lightweight concrete
  • Artificial lightweight aggregate
  • Fiber reinforcement
  • Strength
  • Toughness

ASJC Scopus subject areas

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

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