Effects of fibers and conventional reinforcement contents on fibers scaterring in prismatic bars

Yuri S. Karinski, Avraham N. Dancygier

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents results from a second stage of an experimental study of the dependence of steel fibers distribution along RFC prismatic specimens on the conventional reinforcement ratio and on the total amount of fibers in the concrete mix. The experimental program included two types of prismatic specimens with 30- and 60- kg/m3 of hooked-end steel fibers. Each specimen was sawed into equal segments and the numbers of fibers appearing at the cross-sections were counted and used for a further statistical analysis. This analysis comprised calculations of the average value and standard deviation of a non-dimensional variable, which represents the distribution of the total steel along the specimen. They were used to calibrate a theoretical model, which had been previously proposed by the authors. The test results showed reasonable to good agreement with the theoretical model. A comparison between the results of the 30- and 60-kg/m3 fibers shows that as the conventional reinforcement ratio increases, the standard deviations for the different mixtures approach each other.

Original languageEnglish
Pages (from-to)171-177
Number of pages7
JournalCement and Concrete Composites
Volume86
DOIs
StatePublished - Feb 2018

Keywords

  • Conventional reinforcement ratio
  • Fiber reinforced concrete
  • Fibers distribution's standard deviation
  • Fibers volumetric ratio

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • General Materials Science

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