Fresh and Hardened Properties of Steel Fiber-Reinforced Self-Consolidating Concrete

The main aim of this research is to study the effect of using hooked end steel fiber on the fresh and hardened properties of self-consolidating concrete. The experimental work includes two stages. First stage involved conducting several trial mixes and then choosing the one that conform tothe intern...

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Main Authors: Maan S. Hassan, Iqpal N. Gorgis, Aymn H. Ali
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2015-06-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_105521_c86537521bb0ca800a0bb6e74580b257.pdf
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author Maan S. Hassan
Iqpal N. Gorgis
Aymn H. Ali
author_facet Maan S. Hassan
Iqpal N. Gorgis
Aymn H. Ali
author_sort Maan S. Hassan
collection DOAJ
description The main aim of this research is to study the effect of using hooked end steel fiber on the fresh and hardened properties of self-consolidating concrete. The experimental work includes two stages. First stage involved conducting several trial mixes and then choosing the one that conform tothe international standards in terms of fresh properties. Second stage concerned on the compressive, flexural tensile and splitting tensile strengths evaluationof the selected mixes, at 28 and 90 days.Four concrete mixes were obtained and evaluated. They were similar in mix proportions and differ only in volume fractions of steel fibers incorporated: 0%, 0.5%, 1%, and 1.5%. Results showed that adding hooked steel fibers adversely affect SCC workability and thus more dosage of SP should be added to stay within the standard limits. Similar to conventional HPC, the presence of steel fibers with SCC provide slight increase in compressive strength at 28 days, (up to 11%), while significant enhancement in tensile properties were observed (up to 68% and 80% for splitting and flexural strength respectively). Flexural strength (i.e. modulus of rapture) was generally still higher than splitting testing results in a decreasing order. This order is still applicable in SCC even with the presence of steel fibers.
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spelling doaj.art-655dc28bc3ac4bfc88d4da2bc45d1de62024-02-04T17:28:21ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582015-06-01335A1213122510.30684/etj.33.5A.16105521Fresh and Hardened Properties of Steel Fiber-Reinforced Self-Consolidating ConcreteMaan S. HassanIqpal N. GorgisAymn H. AliThe main aim of this research is to study the effect of using hooked end steel fiber on the fresh and hardened properties of self-consolidating concrete. The experimental work includes two stages. First stage involved conducting several trial mixes and then choosing the one that conform tothe international standards in terms of fresh properties. Second stage concerned on the compressive, flexural tensile and splitting tensile strengths evaluationof the selected mixes, at 28 and 90 days.Four concrete mixes were obtained and evaluated. They were similar in mix proportions and differ only in volume fractions of steel fibers incorporated: 0%, 0.5%, 1%, and 1.5%. Results showed that adding hooked steel fibers adversely affect SCC workability and thus more dosage of SP should be added to stay within the standard limits. Similar to conventional HPC, the presence of steel fibers with SCC provide slight increase in compressive strength at 28 days, (up to 11%), while significant enhancement in tensile properties were observed (up to 68% and 80% for splitting and flexural strength respectively). Flexural strength (i.e. modulus of rapture) was generally still higher than splitting testing results in a decreasing order. This order is still applicable in SCC even with the presence of steel fibers.https://etj.uotechnology.edu.iq/article_105521_c86537521bb0ca800a0bb6e74580b257.pdfselfconsolidatingconcretefresh propertiescompressivestrengthsplitting tensilemodulus of rupturesteel fibers
spellingShingle Maan S. Hassan
Iqpal N. Gorgis
Aymn H. Ali
Fresh and Hardened Properties of Steel Fiber-Reinforced Self-Consolidating Concrete
Engineering and Technology Journal
self
consolidatingconcrete
fresh properties
compressivestrength
splitting tensile
modulus of rupture
steel fibers
title Fresh and Hardened Properties of Steel Fiber-Reinforced Self-Consolidating Concrete
title_full Fresh and Hardened Properties of Steel Fiber-Reinforced Self-Consolidating Concrete
title_fullStr Fresh and Hardened Properties of Steel Fiber-Reinforced Self-Consolidating Concrete
title_full_unstemmed Fresh and Hardened Properties of Steel Fiber-Reinforced Self-Consolidating Concrete
title_short Fresh and Hardened Properties of Steel Fiber-Reinforced Self-Consolidating Concrete
title_sort fresh and hardened properties of steel fiber reinforced self consolidating concrete
topic self
consolidatingconcrete
fresh properties
compressivestrength
splitting tensile
modulus of rupture
steel fibers
url https://etj.uotechnology.edu.iq/article_105521_c86537521bb0ca800a0bb6e74580b257.pdf
work_keys_str_mv AT maanshassan freshandhardenedpropertiesofsteelfiberreinforcedselfconsolidatingconcrete
AT iqpalngorgis freshandhardenedpropertiesofsteelfiberreinforcedselfconsolidatingconcrete
AT aymnhali freshandhardenedpropertiesofsteelfiberreinforcedselfconsolidatingconcrete