A mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete

It appears that the perception and desire to utilize recycled aggregate in concrete is growing across the world, decreasing the environmental impact of landfills and virgin aggregate mining while also making building projects more cost-effective and environmentally friendly. However, the practical u...

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Autores principales:	Uma Shankar Biswal, Pasla Dinakar
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Mix design Recycled aggregate Flyash GGBS Recycled aggregate concrete Two-stage mixing approach Renewable energy sources TJ807-830 Environmental engineering TA170-171
Acceso en línea:	https://doaj.org/article/a9a1135dfb674878aec279fc853539a7
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id	oai:doaj.org-article:a9a1135dfb674878aec279fc853539a7
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spelling	oai:doaj.org-article:a9a1135dfb674878aec279fc853539a72021-11-12T04:48:51ZA mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete2666-790810.1016/j.clet.2021.100314https://doaj.org/article/a9a1135dfb674878aec279fc853539a72021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666790821002743https://doaj.org/toc/2666-7908It appears that the perception and desire to utilize recycled aggregate in concrete is growing across the world, decreasing the environmental impact of landfills and virgin aggregate mining while also making building projects more cost-effective and environmentally friendly. However, the practical utilization of RA has not gained attention to date because of the weaker characteristics of porous attached mortar. Although various mix designs for recycled aggregate concrete (RAC) have been proposed earlier by many authors, still using RA is not made practical for many reasons. One of them is the unavailability of an easy and effective design mix methodology using RAC. Thus, an attempt has been made in the present investigation to advance a mix design methodology for RAC by providing w/b to strength relation, embracing the two-stage mixing approach (TSMA) by completely substituting the CNA with CRA. DIN standard was followed to get the maximum particle packing of aggregates and improved RAC performance. Again, to make RAC more sustainable, a mix design is also proposed to replace cement with widely used SCMs-coal fly ash (CFA) and ground granulated blast furnace slag (GGBS) at 30 and 50% replacement level, respectively. The synergetic effect of the proposed design mix that contains DIN standards, TSMA, and SCMs on fresh, hardened properties, and evaporation studies of RAC was studied. In this context, the comparative analysis manifested the encouraging outcomes to use the proposed mix design methodology for preparing RAC incorporated with CFA and GGBS.Uma Shankar BiswalPasla DinakarElsevierarticleMix designRecycled aggregateFlyashGGBSRecycled aggregate concreteTwo-stage mixing approachRenewable energy sourcesTJ807-830Environmental engineeringTA170-171ENCleaner Engineering and Technology, Vol 5, Iss , Pp 100314- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Mix design Recycled aggregate Flyash GGBS Recycled aggregate concrete Two-stage mixing approach Renewable energy sources TJ807-830 Environmental engineering TA170-171
spellingShingle	Mix design Recycled aggregate Flyash GGBS Recycled aggregate concrete Two-stage mixing approach Renewable energy sources TJ807-830 Environmental engineering TA170-171 Uma Shankar Biswal Pasla Dinakar A mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete
description	It appears that the perception and desire to utilize recycled aggregate in concrete is growing across the world, decreasing the environmental impact of landfills and virgin aggregate mining while also making building projects more cost-effective and environmentally friendly. However, the practical utilization of RA has not gained attention to date because of the weaker characteristics of porous attached mortar. Although various mix designs for recycled aggregate concrete (RAC) have been proposed earlier by many authors, still using RA is not made practical for many reasons. One of them is the unavailability of an easy and effective design mix methodology using RAC. Thus, an attempt has been made in the present investigation to advance a mix design methodology for RAC by providing w/b to strength relation, embracing the two-stage mixing approach (TSMA) by completely substituting the CNA with CRA. DIN standard was followed to get the maximum particle packing of aggregates and improved RAC performance. Again, to make RAC more sustainable, a mix design is also proposed to replace cement with widely used SCMs-coal fly ash (CFA) and ground granulated blast furnace slag (GGBS) at 30 and 50% replacement level, respectively. The synergetic effect of the proposed design mix that contains DIN standards, TSMA, and SCMs on fresh, hardened properties, and evaporation studies of RAC was studied. In this context, the comparative analysis manifested the encouraging outcomes to use the proposed mix design methodology for preparing RAC incorporated with CFA and GGBS.
format	article
author	Uma Shankar Biswal Pasla Dinakar
author_facet	Uma Shankar Biswal Pasla Dinakar
author_sort	Uma Shankar Biswal
title	A mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete
title_short	A mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete
title_full	A mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete
title_fullStr	A mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete
title_full_unstemmed	A mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete
title_sort	mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a9a1135dfb674878aec279fc853539a7
work_keys_str_mv	AT umashankarbiswal amixdesignprocedureforflyashandgroundgranulatedblastfurnaceslagbasedtreatedrecycledaggregateconcrete AT pasladinakar amixdesignprocedureforflyashandgroundgranulatedblastfurnaceslagbasedtreatedrecycledaggregateconcrete AT umashankarbiswal mixdesignprocedureforflyashandgroundgranulatedblastfurnaceslagbasedtreatedrecycledaggregateconcrete AT pasladinakar mixdesignprocedureforflyashandgroundgranulatedblastfurnaceslagbasedtreatedrecycledaggregateconcrete
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A mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete

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