Ghanbarpour, S; Mazaheripour, H; Mirmoradi, S H and Barari, A (2010) The effect of type and volume fraction (vf) of steel fiber on the mechanical properties of self-compacting concrete. Journal of Engineering, Design and Technology, 8(3), pp. 247-256. ISSN 1726-0531
Abstract
Purpose – Self-compacting concrete (SCC) offers several economic and technical benefits; the use of steel fibers extends its possibilities. Steel fibers bridge cracks, retard their propagation, and improve several characteristics and properties of the SCC. The purpose of this paper is to investigate the effects of type and volume fraction of steel fiber on the compressive strength, split tensile strength, flexural strength and modulus of elasticity of steel fiber reinforced self-compacting concrete (SFRSCC). Design/methodology/approach – For this purpose, Micro wire and Wave type steel fibers with l/d ratios of 50 were used. Three different fiber volumes were added to concrete mixes at 0.5, 0.75 and 1 per cent by volume of SCC. Six different SFRSCC mixes were prepared. After 28 days of curing, compressive, split and flexural strength and modulus of elasticity were determined. Findings – It was found that, inclusion of steel fibers significantly affect the split tensile and flexural strength of SCC accordance with type and vf. Besides, mathematical expressions were developed to estimate the flexural, modulus of elasticity and split tensile strength of SFRSCCs regarding of compressive strength. Originality/value – It was found that inclusion of steel fibers significantly affected the split tensile and flexural strength of SCC accordance with type and f v.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | concrete; mechanical properties of materials; steel |
| Index terms: | curing, methodology, tensile strength, modulus of elasticity, compressive strength, mechanical property, propagation, estimate, flexural strength |
| Subjects: | material properties and characteristics, research methods, material analysis and testing, structural engineering, concrete and cementitious materials, financial and cost management, engineering process |
| Topics: | Cost Management, Construction Materials, Engineering Principles, Research Practice |
| Descriptive scope: | 3 PCT |
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