Effect of Fibers on Bond Performance of Lightweight Reinforced Concrete

Authors

  • Ahsan Ali
    Affiliation

    Department of Civil Engineering, University of Applied Sciences, Leipzig, Germany

  • Shahid Iqbal
    Affiliation

    Department of Civil Engineering, University of Applied Sciences, Leipzig, Germany

  • Klaus Holschemacher
    Affiliation

    Department of Civil Engineering, University of Applied Sciences, Leipzig, Germany

  • Thomas A. Bier
    Affiliation

    Technical University, Bergakademie, Freiberg, Germany

https://doi.org/10.3311/PPci.8080

Abstract

Integrity of a reinforced concrete member, or structure composed of such members cannot be  ensured if there is inadequate bond between reinforcement and concrete around it. In current experimental work, eect on bond performance of lightweight concrete is discussed after addition of steel fibers. For the purpose, modified Pull-out specimens were tested at 28 days. Hooked end steel fibers having length of 35mm and 0.5mm in diameter, developing aspect ratio of 70 were used. Fiber contents of 0, 20 and 40 kg/m3 were added to the lightweight concrete mixes. Besides bond behavior, results of fresh and hardened properties are also presented. Results indicate higher tensile strengths and pull-out loads for higher fiber contents. The fresh concrete density and compressive strength of mixes reduced, whereas air-content values increased with higher fiber content.

Keywords:

Bond, Lightweight, Steel fibers, Pull-out

Published Online

2015-07-29

How to Cite

Ali, A., Iqbal, S., Holschemacher, K., Bier, T. A. “Effect of Fibers on Bond Performance of Lightweight Reinforced Concrete”, Periodica Polytechnica Civil Engineering, 60(1), pp. 97–102, 2016. https://doi.org/10.3311/PPci.8080

Issue

Section

Research Article