Experimental evaluation of steel fiber effect on mechanical properties of steel fiber-reinforced cement matrix

This paper investigates the possibility of combining steel fibers with different weight percentages along with their functions in increasing compressive strength, indirect tensile strength and bending strength. In this study, two types of steel fibers, hooked and crimped, have been employed in the p...

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Main Authors: Ali Jadidi, Milad Amiri, Ehsanollah Zeighami
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2017-09-01
Series:Fracture and Structural Integrity
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Online Access:https://www.fracturae.com/index.php/fis/article/view/1949
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author Ali Jadidi
Milad Amiri
Ehsanollah Zeighami
author_facet Ali Jadidi
Milad Amiri
Ehsanollah Zeighami
author_sort Ali Jadidi
collection DOAJ
description This paper investigates the possibility of combining steel fibers with different weight percentages along with their functions in increasing compressive strength, indirect tensile strength and bending strength. In this study, two types of steel fibers, hooked and crimped, have been employed in the preparation of samples. These fibers have a length to diameter ratio of 30 mm and 50 mm (L/D=30 and L/D=50). Further, the combination of these fibers caused a reduction in concrete flow and reduced its efficiency. The combination of these fibers caused considerable increase of concrete bending strength compared to fibreless and single-fiber type concretes. In this research, tensile strength and bending strength of samples with 1.5%, 2% and 2.5% fibers were investigated in which the tensile strength and bending strength of all samples increased. However, there were very considerable increases in tensile strength and bending strength of samples made with hybrid crimped fibers. The results indicated that steel fibers did not have much impact on concrete compressive strength.
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spelling doaj-art-8383c9f99dc44be0b4c94b547a381f782025-01-03T00:39:47ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932017-09-011142Experimental evaluation of steel fiber effect on mechanical properties of steel fiber-reinforced cement matrixAli Jadidi0Milad Amiri1Ehsanollah Zeighami2Department of Civil Engineering, University of Islamic Azad, Arak, IranDepartment of Civil Engineering, University of Islamic Azad, Arak, IranDepartment of Civil Engineering, University of Islamic Azad, Arak, IranThis paper investigates the possibility of combining steel fibers with different weight percentages along with their functions in increasing compressive strength, indirect tensile strength and bending strength. In this study, two types of steel fibers, hooked and crimped, have been employed in the preparation of samples. These fibers have a length to diameter ratio of 30 mm and 50 mm (L/D=30 and L/D=50). Further, the combination of these fibers caused a reduction in concrete flow and reduced its efficiency. The combination of these fibers caused considerable increase of concrete bending strength compared to fibreless and single-fiber type concretes. In this research, tensile strength and bending strength of samples with 1.5%, 2% and 2.5% fibers were investigated in which the tensile strength and bending strength of all samples increased. However, there were very considerable increases in tensile strength and bending strength of samples made with hybrid crimped fibers. The results indicated that steel fibers did not have much impact on concrete compressive strength.https://www.fracturae.com/index.php/fis/article/view/1949Mechanical propertiesFiber concreteHybrid concreteSteel fibersIndirect tensile test
spellingShingle Ali Jadidi
Milad Amiri
Ehsanollah Zeighami
Experimental evaluation of steel fiber effect on mechanical properties of steel fiber-reinforced cement matrix
Fracture and Structural Integrity
Mechanical properties
Fiber concrete
Hybrid concrete
Steel fibers
Indirect tensile test
title Experimental evaluation of steel fiber effect on mechanical properties of steel fiber-reinforced cement matrix
title_full Experimental evaluation of steel fiber effect on mechanical properties of steel fiber-reinforced cement matrix
title_fullStr Experimental evaluation of steel fiber effect on mechanical properties of steel fiber-reinforced cement matrix
title_full_unstemmed Experimental evaluation of steel fiber effect on mechanical properties of steel fiber-reinforced cement matrix
title_short Experimental evaluation of steel fiber effect on mechanical properties of steel fiber-reinforced cement matrix
title_sort experimental evaluation of steel fiber effect on mechanical properties of steel fiber reinforced cement matrix
topic Mechanical properties
Fiber concrete
Hybrid concrete
Steel fibers
Indirect tensile test
url https://www.fracturae.com/index.php/fis/article/view/1949
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AT ehsanollahzeighami experimentalevaluationofsteelfibereffectonmechanicalpropertiesofsteelfiberreinforcedcementmatrix