Better utilization of fly ash and other SCMs in lean concrete and durable concrete pavements and structural concrete applications

Moghaddam, Farzad

Better utilization of fly ash and other SCMs in lean concrete and durable concrete pavements and structural concrete applications

Moghaddam, Farzad

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Publication Type:: Thesis
Issue Date:: 2018

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Field	Value	Language
dc.contributor.author	Moghaddam, Farzad
dc.date.accessioned	2019-01-11T01:24:42Z
dc.date.available	2019-01-11T01:24:42Z
dc.date.issued	2018
dc.identifier.uri	http://hdl.handle.net/10453/129466
dc.description	University of Technology Sydney. Faculty of Engineering and Information Technology.	en_AU
dc.description.abstract	The achievement of sustainable development has been a major challenge facing the concrete industry for years. Recently, there have been changes, both technical and policy driven, that have the potential to affect the availability of classified fly ash (CFA) and finding alternative supplementary cementitious materials (SCMs) is a critical issue. Run-of-station fly ash (RFA) can be a possible alternative to CFA. In this investigation, an experimental study has been carried out to evaluate the effect of fineness of fly ash on the heat of hydration, microstructure, flow and compressive strength of blended cement pastes. The study has been extended to assess the influence of fineness, types and levels of SCMs (fly ash, slag or metakaolin) on the fresh, hardened and durability properties of mortars and different concrete applications. This experimental investigation has demonstrated the value and benefits of using RFA as an alternative SCM in concrete. RFA has proven abilities to achieve the same level of performance as CFA by only adjusting the mix design such as lowering w/b ratio when used in various concrete applications. SL and MK could also be used as other alternatives to CFA in concrete.	en_AU
dc.format	Thesis (PhD)
dc.language.iso	en_AU	en_AU
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/129466/2/02whole.pdf
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.rights	au.edu.uts.lib/ppc
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	fly ash
dc.subject	concrete pavement
dc.subject	cementitious material
dc.subject	lean concrete
dc.subject	structural concrete
dc.subject	cement paste
dc.title	Better utilization of fly ash and other SCMs in lean concrete and durable concrete pavements and structural concrete applications	en_AU
dc.type	Thesis	en_AU
utslib.copyright.status	open_access

Abstract:

The achievement of sustainable development has been a major challenge facing the concrete industry for years. Recently, there have been changes, both technical and policy driven, that have the potential to affect the availability of classified fly ash (CFA) and finding alternative supplementary cementitious materials (SCMs) is a critical issue. Run-of-station fly ash (RFA) can be a possible alternative to CFA. In this investigation, an experimental study has been carried out to evaluate the effect of fineness of fly ash on the heat of hydration, microstructure, flow and compressive strength of blended cement pastes. The study has been extended to assess the influence of fineness, types and levels of SCMs (fly ash, slag or metakaolin) on the fresh, hardened and durability properties of mortars and different concrete applications. This experimental investigation has demonstrated the value and benefits of using RFA as an alternative SCM in concrete. RFA has proven abilities to achieve the same level of performance as CFA by only adjusting the mix design such as lowering w/b ratio when used in various concrete applications. SL and MK could also be used as other alternatives to CFA in concrete.

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http://hdl.handle.net/10453/129466