Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate

Hardened concrete due to brittleness, have low tensile strength and its strain tolerance is low. Low resistance of this material makes it more brittle. Light weight concrete which contains eager and brittle materials are subject to sudden failure at the time of loading. In order to increase ductilit...

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Autores principales:	Hooshang Dabbagh, Hooman Mohammaddoost
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2017
Materias:	fiber geometry lightweight concrete mechanical properties scoria aggregate steel fiber Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/ddf9fafda4694340bf7a5398e54d09ca
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spelling	oai:doaj.org-article:ddf9fafda4694340bf7a5398e54d09ca2021-11-08T15:47:38ZInfluence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate2476-39772538-261610.22065/jsce.2017.86897.1205https://doaj.org/article/ddf9fafda4694340bf7a5398e54d09ca2017-07-01T00:00:00Zhttps://www.jsce.ir/article_46856_4377480ad1b221a6b2b00c758e6fec10.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Hardened concrete due to brittleness, have low tensile strength and its strain tolerance is low. Low resistance of this material makes it more brittle. Light weight concrete which contains eager and brittle materials are subject to sudden failure at the time of loading. In order to increase ductility and prevent the spread of micro-cracks as well as appropriate continuity in the concrete, increasing the energy absorption capacity, reducing the structural weight against shock loads, steel fibers can be useful. The purpose of this paper is evaluation of the influences of steel fiber on mechanical characteristic of concrete at the age of 7 and 28 days. Steel fibers used in forms of corrugated shape with length to diameter ratio of 37.5 and smooth-end hook shape with length to diameter ratio of 50. The volume percent in various forms is 1% constant. To calculate the mechanical properties of concrete we used tensile strength tests (Brazilian and direct), and compressive strength tests. The results indicate that they increase flexural strength, especially tensile strength of concrete, but they don’t have significant effect on the compressive strength.Hooshang DabbaghHooman MohammaddoostIranian Society of Structrual Engineering (ISSE)articlefiber geometrylightweight concretemechanical propertiesscoria aggregatesteel fiberBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 4, Iss شماره ویژه 1, Pp 17-25 (2017)
institution	DOAJ
collection	DOAJ
language	FA
topic	fiber geometry lightweight concrete mechanical properties scoria aggregate steel fiber Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	fiber geometry lightweight concrete mechanical properties scoria aggregate steel fiber Bridge engineering TG1-470 Building construction TH1-9745 Hooshang Dabbagh Hooman Mohammaddoost Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate
description	Hardened concrete due to brittleness, have low tensile strength and its strain tolerance is low. Low resistance of this material makes it more brittle. Light weight concrete which contains eager and brittle materials are subject to sudden failure at the time of loading. In order to increase ductility and prevent the spread of micro-cracks as well as appropriate continuity in the concrete, increasing the energy absorption capacity, reducing the structural weight against shock loads, steel fibers can be useful. The purpose of this paper is evaluation of the influences of steel fiber on mechanical characteristic of concrete at the age of 7 and 28 days. Steel fibers used in forms of corrugated shape with length to diameter ratio of 37.5 and smooth-end hook shape with length to diameter ratio of 50. The volume percent in various forms is 1% constant. To calculate the mechanical properties of concrete we used tensile strength tests (Brazilian and direct), and compressive strength tests. The results indicate that they increase flexural strength, especially tensile strength of concrete, but they don’t have significant effect on the compressive strength.
format	article
author	Hooshang Dabbagh Hooman Mohammaddoost
author_facet	Hooshang Dabbagh Hooman Mohammaddoost
author_sort	Hooshang Dabbagh
title	Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate
title_short	Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate
title_full	Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate
title_fullStr	Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate
title_full_unstemmed	Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate
title_sort	influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with scoria aggregate
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2017
url	https://doaj.org/article/ddf9fafda4694340bf7a5398e54d09ca
work_keys_str_mv	AT hooshangdabbagh influenceoffibergeometryonthemechanicalpropertiesofstructuralsteelfiberlightweightconcretemadewithscoriaaggregate AT hoomanmohammaddoost influenceoffibergeometryonthemechanicalpropertiesofstructuralsteelfiberlightweightconcretemadewithscoriaaggregate
_version_	1718441707040669696

Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate

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