Enhancement of self-compactability of fresh self-compacting concrete: A review

The main characteristics of self-compating concrete (SCC) are its ability to flow into every corner of the formwork and even in congested reinforcement arrangements under its weight and without segregation. This paper reviews the recent progress in the enhancement of the self-compatibility of SCC in...

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Autores principales:	Bikila Meko, Joshua O. Ighalo, Olatokunbo M. Ofuyatan
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Self-compating concrete Cement Supplementary cementitious materials Fly ash Silica fume Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/507cd1df1b204424b521ba968b2243e6
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spelling	oai:doaj.org-article:507cd1df1b204424b521ba968b2243e62021-12-01T05:07:29ZEnhancement of self-compactability of fresh self-compacting concrete: A review2772-397610.1016/j.clema.2021.100019https://doaj.org/article/507cd1df1b204424b521ba968b2243e62021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2772397621000198https://doaj.org/toc/2772-3976The main characteristics of self-compating concrete (SCC) are its ability to flow into every corner of the formwork and even in congested reinforcement arrangements under its weight and without segregation. This paper reviews the recent progress in the enhancement of the self-compatibility of SCC in a fresh state. The main approaches to achieve this aim was observed to be the employment of air entrainment, and the utilization of various supplementary cementitious materials (SCMs) such as fly ash, silica fume, ground-granulated blast-furnace slag and rice husk ash. Entraining suitable air bubbles had the potential to enhance the self-compatibility of fresh concrete while also being very beneficial in reducing the cement content of the SCC. The workability and rheological properties of fresh SCC was observed to be enhanced by the utilization of SCMs. SCMs also possess the advantages of pozzolanic and filler effects which are not in play for entrained air. For future work, researchers can explore statistical and intelligent multi-objective optimisation techniques for getting the best amount of SCMs that will maximize the fresh properties whilst considering its deleterious effect on the hardened properties.Bikila MekoJoshua O. IghaloOlatokunbo M. OfuyatanElsevierarticleSelf-compating concreteCementSupplementary cementitious materialsFly ashSilica fumeMaterials of engineering and construction. Mechanics of materialsTA401-492ENCleaner Materials, Vol 1, Iss , Pp 100019- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Self-compating concrete Cement Supplementary cementitious materials Fly ash Silica fume Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Self-compating concrete Cement Supplementary cementitious materials Fly ash Silica fume Materials of engineering and construction. Mechanics of materials TA401-492 Bikila Meko Joshua O. Ighalo Olatokunbo M. Ofuyatan Enhancement of self-compactability of fresh self-compacting concrete: A review
description	The main characteristics of self-compating concrete (SCC) are its ability to flow into every corner of the formwork and even in congested reinforcement arrangements under its weight and without segregation. This paper reviews the recent progress in the enhancement of the self-compatibility of SCC in a fresh state. The main approaches to achieve this aim was observed to be the employment of air entrainment, and the utilization of various supplementary cementitious materials (SCMs) such as fly ash, silica fume, ground-granulated blast-furnace slag and rice husk ash. Entraining suitable air bubbles had the potential to enhance the self-compatibility of fresh concrete while also being very beneficial in reducing the cement content of the SCC. The workability and rheological properties of fresh SCC was observed to be enhanced by the utilization of SCMs. SCMs also possess the advantages of pozzolanic and filler effects which are not in play for entrained air. For future work, researchers can explore statistical and intelligent multi-objective optimisation techniques for getting the best amount of SCMs that will maximize the fresh properties whilst considering its deleterious effect on the hardened properties.
format	article
author	Bikila Meko Joshua O. Ighalo Olatokunbo M. Ofuyatan
author_facet	Bikila Meko Joshua O. Ighalo Olatokunbo M. Ofuyatan
author_sort	Bikila Meko
title	Enhancement of self-compactability of fresh self-compacting concrete: A review
title_short	Enhancement of self-compactability of fresh self-compacting concrete: A review
title_full	Enhancement of self-compactability of fresh self-compacting concrete: A review
title_fullStr	Enhancement of self-compactability of fresh self-compacting concrete: A review
title_full_unstemmed	Enhancement of self-compactability of fresh self-compacting concrete: A review
title_sort	enhancement of self-compactability of fresh self-compacting concrete: a review
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/507cd1df1b204424b521ba968b2243e6
work_keys_str_mv	AT bikilameko enhancementofselfcompactabilityoffreshselfcompactingconcreteareview AT joshuaoighalo enhancementofselfcompactabilityoffreshselfcompactingconcreteareview AT olatokunbomofuyatan enhancementofselfcompactabilityoffreshselfcompactingconcreteareview
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Enhancement of self-compactability of fresh self-compacting concrete: A review

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