Experimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime

Hydraulic conductivity plays a vital role in the studies encompassing explorations on flow and porous media. The study investigates the compaction characteristics of a river sand (Beas, Sutlej, and Ghaggar rivers) and fly ash mix in different proportions and evaluates four empirical equations for es...

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Autores principales:	Abhishish Chandel, Vijay Shankar, M. A. Alam
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	compaction darcy's law fly ash hydraulic conductivity porous media Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/a7dcb414b6284abab5f6ad58009f0a8e
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spelling	oai:doaj.org-article:a7dcb414b6284abab5f6ad58009f0a8e2021-11-06T10:50:41ZExperimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime0273-12231996-973210.2166/wst.2021.042https://doaj.org/article/a7dcb414b6284abab5f6ad58009f0a8e2021-03-01T00:00:00Zhttp://wst.iwaponline.com/content/83/5/1028https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Hydraulic conductivity plays a vital role in the studies encompassing explorations on flow and porous media. The study investigates the compaction characteristics of a river sand (Beas, Sutlej, and Ghaggar rivers) and fly ash mix in different proportions and evaluates four empirical equations for estimating hydraulic conductivity. Experiments show that an increase in the fly ash content results in a decrease in the maximum dry density (MDD) and an increase in the corresponding optimum moisture content (OMC) of sand–fly ash samples. MDD at optimum fly ash content was achieved at low water content, which resulted in less dry unit weight than that of typical conventional fill. In Beas, Sutlej, and Ghaggar sands the optimum fly ash content up to which the hydraulic conductivity value reduced uniformly was found to be 30, 45, and 40%, respectively. Any further increase in the fly ash content results in a negligible decrease in hydraulic conductivity value. The observed hydraulic conductivity of sand–fly ash mix lies in the range of silts, which emboldens the use of sand–fly ash mix as embankment material. Further, the evaluation of empirical equations considered in the study substantiates the efficacy of the Terzaghi equation in estimating the hydraulic conductivity of river sand-fly ash mix.Abhishish ChandelVijay ShankarM. A. AlamIWA Publishingarticlecompactiondarcy's lawfly ashhydraulic conductivityporous mediaEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 5, Pp 1028-1038 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	compaction darcy's law fly ash hydraulic conductivity porous media Environmental technology. Sanitary engineering TD1-1066
spellingShingle	compaction darcy's law fly ash hydraulic conductivity porous media Environmental technology. Sanitary engineering TD1-1066 Abhishish Chandel Vijay Shankar M. A. Alam Experimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime
description	Hydraulic conductivity plays a vital role in the studies encompassing explorations on flow and porous media. The study investigates the compaction characteristics of a river sand (Beas, Sutlej, and Ghaggar rivers) and fly ash mix in different proportions and evaluates four empirical equations for estimating hydraulic conductivity. Experiments show that an increase in the fly ash content results in a decrease in the maximum dry density (MDD) and an increase in the corresponding optimum moisture content (OMC) of sand–fly ash samples. MDD at optimum fly ash content was achieved at low water content, which resulted in less dry unit weight than that of typical conventional fill. In Beas, Sutlej, and Ghaggar sands the optimum fly ash content up to which the hydraulic conductivity value reduced uniformly was found to be 30, 45, and 40%, respectively. Any further increase in the fly ash content results in a negligible decrease in hydraulic conductivity value. The observed hydraulic conductivity of sand–fly ash mix lies in the range of silts, which emboldens the use of sand–fly ash mix as embankment material. Further, the evaluation of empirical equations considered in the study substantiates the efficacy of the Terzaghi equation in estimating the hydraulic conductivity of river sand-fly ash mix.
format	article
author	Abhishish Chandel Vijay Shankar M. A. Alam
author_facet	Abhishish Chandel Vijay Shankar M. A. Alam
author_sort	Abhishish Chandel
title	Experimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime
title_short	Experimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime
title_full	Experimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime
title_fullStr	Experimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime
title_full_unstemmed	Experimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime
title_sort	experimental investigations for assessing the influence of fly ash on the flow through porous media in darcy regime
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/a7dcb414b6284abab5f6ad58009f0a8e
work_keys_str_mv	AT abhishishchandel experimentalinvestigationsforassessingtheinfluenceofflyashontheflowthroughporousmediaindarcyregime AT vijayshankar experimentalinvestigationsforassessingtheinfluenceofflyashontheflowthroughporousmediaindarcyregime AT maalam experimentalinvestigationsforassessingtheinfluenceofflyashontheflowthroughporousmediaindarcyregime
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Experimental investigations for assessing the influence of fly ash on the flow through porous media in Darcy regime

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