An experimental study on flexural strength enhancement of concrete by means of small steel fibers

Namdar, A. and Zakaria, I. B. and Hazeli, A. B. and Azimi, S. J. and Razak, A. S. B. A. and Gopalakrishna, G. S. (2013) An experimental study on flexural strength enhancement of concrete by means of small steel fibers. Frattura ed Integrita Strutturale, 26. pp. 22-30.

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Cost effective improvement of the mechanical performances of structural materials is an important goal in construction industry. To improve the flexural strength of plain concrete so as to reduce construction costs, the addition of fibers to the concrete mixture can be adopted. The addition of small steel fibers with different lengths and proportion have experimentally been analyzed in terms of concrete flexural strength enhancement. The main objectives of the present study are related to the evaluation of the influence of steel fibers design on the increase of concrete flexural characteristics and on the mode of failure. Two types of beams have been investigated. The force level, deflection and time to failure of beams have been measured. The shear crack, flexural crack and intermediate shear-flexural crack have been studied. The steel fiber content controlled crack morphology. Flexural strength and time to failure of fiber reinforce concrete could be further enhanced if, instead of smooth steel fibers, corrugated fibers were used.

Item Type: Article
Uncontrolled Keywords: Bending strength, Concrete flexural strengths, Concretes, Construction industry, Corrugated steel, Cracks, Flexibility of beam, Flexural characteristics, Flexural cracks, Mechanical performance, Shear crack, Steel fibers, Strength enhancement
Subjects: F Earth Science > Geology
Divisions: Department of > Earth Science
Depositing User: Arshiya Kousar Library Assistant
Date Deposited: 24 Oct 2019 05:35
Last Modified: 24 Oct 2019 05:35

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