Specimen size and shape effects on strength of concrete in the absence and presence of steel fibers

Abstract In this research, the effects of size and shape on compressive and splitting tensile strength of fibrous and non-fibrous concrete specimens with different characteristic strength were investigated. With this aim, both fibrous and non-fibrous 10 different concrete mixtures with 0.3, 0.4, 0.5...

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Autores principales:	Mardani-Aghabaglou,Ali, Bayqra,Sultan Husein, Nobakhtjoo,Amir
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2021
Materias:	shape effect size effect steel-reinforced concrete splitting tensile strength compressive strength
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2021000100128
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spelling	oai:scielo:S0718-915X20210001001282021-05-19Specimen size and shape effects on strength of concrete in the absence and presence of steel fibersMardani-Aghabaglou,AliBayqra,Sultan HuseinNobakhtjoo,Amir shape effect size effect steel-reinforced concrete splitting tensile strength compressive strength Abstract In this research, the effects of size and shape on compressive and splitting tensile strength of fibrous and non-fibrous concrete specimens with different characteristic strength were investigated. With this aim, both fibrous and non-fibrous 10 different concrete mixtures with 0.3, 0.4, 0.5, 0.6 and 0. 7 Water/Cement ratio were prepared. In the fibrous mixture specimens, the total amount of steel fibers to 1% by total volume. In the entire specimens, 42.5 R type Portland cement were used as bonding elements while crushed lime stones in 3 sizes were added to the mixtures. Furthermore, to evaluate the influence of size and shapes over specimens’ strength, for each concrete mixtures two 10 cm and 15 cm cubic specimen beside two 10×20 cm and 15×30 cm cylindrical specimens were prepared as well. The prepared specimens were subjected to compressive and splitting tensile tests. The results showed that, regardless of the fiber amount and specimens’ shapes, the decrease in specimens’ size resulted in higher strength. But in the high ratio of Water/Cement and fibrous mixtures, the mentioned behavior was not observed.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.20 n.1 20212021-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2021000100128en10.7764/rdlc.20.1.128
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	shape effect size effect steel-reinforced concrete splitting tensile strength compressive strength
spellingShingle	shape effect size effect steel-reinforced concrete splitting tensile strength compressive strength Mardani-Aghabaglou,Ali Bayqra,Sultan Husein Nobakhtjoo,Amir Specimen size and shape effects on strength of concrete in the absence and presence of steel fibers
description	Abstract In this research, the effects of size and shape on compressive and splitting tensile strength of fibrous and non-fibrous concrete specimens with different characteristic strength were investigated. With this aim, both fibrous and non-fibrous 10 different concrete mixtures with 0.3, 0.4, 0.5, 0.6 and 0. 7 Water/Cement ratio were prepared. In the fibrous mixture specimens, the total amount of steel fibers to 1% by total volume. In the entire specimens, 42.5 R type Portland cement were used as bonding elements while crushed lime stones in 3 sizes were added to the mixtures. Furthermore, to evaluate the influence of size and shapes over specimens’ strength, for each concrete mixtures two 10 cm and 15 cm cubic specimen beside two 10×20 cm and 15×30 cm cylindrical specimens were prepared as well. The prepared specimens were subjected to compressive and splitting tensile tests. The results showed that, regardless of the fiber amount and specimens’ shapes, the decrease in specimens’ size resulted in higher strength. But in the high ratio of Water/Cement and fibrous mixtures, the mentioned behavior was not observed.
author	Mardani-Aghabaglou,Ali Bayqra,Sultan Husein Nobakhtjoo,Amir
author_facet	Mardani-Aghabaglou,Ali Bayqra,Sultan Husein Nobakhtjoo,Amir
author_sort	Mardani-Aghabaglou,Ali
title	Specimen size and shape effects on strength of concrete in the absence and presence of steel fibers
title_short	Specimen size and shape effects on strength of concrete in the absence and presence of steel fibers
title_full	Specimen size and shape effects on strength of concrete in the absence and presence of steel fibers
title_fullStr	Specimen size and shape effects on strength of concrete in the absence and presence of steel fibers
title_full_unstemmed	Specimen size and shape effects on strength of concrete in the absence and presence of steel fibers
title_sort	specimen size and shape effects on strength of concrete in the absence and presence of steel fibers
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2021000100128
work_keys_str_mv	AT mardaniaghabaglouali specimensizeandshapeeffectsonstrengthofconcreteintheabsenceandpresenceofsteelfibers AT bayqrasultanhusein specimensizeandshapeeffectsonstrengthofconcreteintheabsenceandpresenceofsteelfibers AT nobakhtjooamir specimensizeandshapeeffectsonstrengthofconcreteintheabsenceandpresenceofsteelfibers
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Specimen size and shape effects on strength of concrete in the absence and presence of steel fibers

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