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

Frattura ed Integrità Strutturale. 2013;7(26):22-30 DOI 10.3221/IGF-ESIS.26.03


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Journal Title: Frattura ed Integrità Strutturale

ISSN: 1971-8993 (Online)

Publisher: Gruppo Italiano Frattura

Society/Institution: Gruppo Italiano Frattura

LCC Subject Category: Technology: Mechanical engineering and machinery | Technology: Engineering (General). Civil engineering (General): Structural engineering (General)

Country of publisher: Italy

Language of fulltext: English

Full-text formats available: PDF, Browsable



Abdoullah Namdar
Ideris Bin Zakaria
Azimah Bt Hazeli
Sayed Javid Azimi
Abdul Syukor Bin Abd. Razak
G. S. Gopalakrishna


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Time From Submission to Publication: 6 weeks


Abstract | Full Text

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.