Shear Strength of Hybrid Fibre-Reinforced Ternary Blend Geopolymer Concrete Beams under Flexure

The need to promote sustainable civil infrastructure is one of the most important concerns in the construction industry. Geopolymer composites are one of the promising eco-friendly materials for the development of low carbon concrete. The main objective of this experimental investigation is to study...

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Autores principales:	V. Sathish Kumar, N. Ganesan, P. V. Indira
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	beam geopolymer concrete hybrid fibre-reinforced concrete shear strength ternary blend Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/e526efc1c0254f0c861860bf52eb8fdd
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spelling	oai:doaj.org-article:e526efc1c0254f0c861860bf52eb8fdd2021-11-11T18:09:40ZShear Strength of Hybrid Fibre-Reinforced Ternary Blend Geopolymer Concrete Beams under Flexure10.3390/ma142166341996-1944https://doaj.org/article/e526efc1c0254f0c861860bf52eb8fdd2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6634https://doaj.org/toc/1996-1944The need to promote sustainable civil infrastructure is one of the most important concerns in the construction industry. Geopolymer composites are one of the promising eco-friendly materials for the development of low carbon concrete. The main objective of this experimental investigation is to study the effect of hybrid fibres on the shear strength of flexural members made with ternary blend geopolymer concrete (TGPC). A total number of 27 reinforced concrete beams of size 100 mm × 150 mm × 1200 mm were cast and tested for shear. M55 grade of concrete was considered in this study. Crimped steel fibres and polypropylene fibres with an aspect ratio of 66 and 300, respectively, were used in this work. The main variables considered in this investigation involve two volume proportions of steel fibres, viz., 0.5% and 1% as well as four volume proportions of polypropylene fibres viz., 0.1%, 0.15%, 0.2% and 0.25%. The hybrid fibre-reinforced ternary blend geopolymer concrete (HTGPC) beams were compared with TGPC beams without fibres. From the test results, it was clear that incorporating hybrid fibres improved the shear strength and changed the type of failure of the beam from shear to flexure. Moreover, a method to predict the ultimate shear strength of HTGPC was proposed, and the estimated values were found to be the same as the test results.V. Sathish KumarN. GanesanP. V. IndiraMDPI AGarticlebeamgeopolymer concretehybrid fibre-reinforced concreteshear strengthternary blendTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6634, p 6634 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	beam geopolymer concrete hybrid fibre-reinforced concrete shear strength ternary blend Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	beam geopolymer concrete hybrid fibre-reinforced concrete shear strength ternary blend Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 V. Sathish Kumar N. Ganesan P. V. Indira Shear Strength of Hybrid Fibre-Reinforced Ternary Blend Geopolymer Concrete Beams under Flexure
description	The need to promote sustainable civil infrastructure is one of the most important concerns in the construction industry. Geopolymer composites are one of the promising eco-friendly materials for the development of low carbon concrete. The main objective of this experimental investigation is to study the effect of hybrid fibres on the shear strength of flexural members made with ternary blend geopolymer concrete (TGPC). A total number of 27 reinforced concrete beams of size 100 mm × 150 mm × 1200 mm were cast and tested for shear. M55 grade of concrete was considered in this study. Crimped steel fibres and polypropylene fibres with an aspect ratio of 66 and 300, respectively, were used in this work. The main variables considered in this investigation involve two volume proportions of steel fibres, viz., 0.5% and 1% as well as four volume proportions of polypropylene fibres viz., 0.1%, 0.15%, 0.2% and 0.25%. The hybrid fibre-reinforced ternary blend geopolymer concrete (HTGPC) beams were compared with TGPC beams without fibres. From the test results, it was clear that incorporating hybrid fibres improved the shear strength and changed the type of failure of the beam from shear to flexure. Moreover, a method to predict the ultimate shear strength of HTGPC was proposed, and the estimated values were found to be the same as the test results.
format	article
author	V. Sathish Kumar N. Ganesan P. V. Indira
author_facet	V. Sathish Kumar N. Ganesan P. V. Indira
author_sort	V. Sathish Kumar
title	Shear Strength of Hybrid Fibre-Reinforced Ternary Blend Geopolymer Concrete Beams under Flexure
title_short	Shear Strength of Hybrid Fibre-Reinforced Ternary Blend Geopolymer Concrete Beams under Flexure
title_full	Shear Strength of Hybrid Fibre-Reinforced Ternary Blend Geopolymer Concrete Beams under Flexure
title_fullStr	Shear Strength of Hybrid Fibre-Reinforced Ternary Blend Geopolymer Concrete Beams under Flexure
title_full_unstemmed	Shear Strength of Hybrid Fibre-Reinforced Ternary Blend Geopolymer Concrete Beams under Flexure
title_sort	shear strength of hybrid fibre-reinforced ternary blend geopolymer concrete beams under flexure
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e526efc1c0254f0c861860bf52eb8fdd
work_keys_str_mv	AT vsathishkumar shearstrengthofhybridfibrereinforcedternaryblendgeopolymerconcretebeamsunderflexure AT nganesan shearstrengthofhybridfibrereinforcedternaryblendgeopolymerconcretebeamsunderflexure AT pvindira shearstrengthofhybridfibrereinforcedternaryblendgeopolymerconcretebeamsunderflexure
_version_	1718431975043235840

Shear Strength of Hybrid Fibre-Reinforced Ternary Blend Geopolymer Concrete Beams under Flexure

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