Investigation on the influence of run of station fly ash in concrete pavement construction

Sirivivatnanon, V; Moghaddam, F; Vessalas, K

Investigation on the influence of run of station fly ash in concrete pavement construction

Sirivivatnanon, V

Moghaddam, F Vessalas, K

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Publication Type:: Conference Proceeding
Citation:: 2019
Issue Date:: 2019-09-08

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Field	Value	Language
dc.contributor.author	Sirivivatnanon, V https://orcid.org/0000-0003-1901-6064	en_US
dc.contributor.author	Moghaddam, F	en_US
dc.contributor.author	Vessalas, K https://orcid.org/0000-0003-3948-5212	en_US
dc.date	2019-09-08	en_US
dc.date.available	2019-06-06	en_US
dc.date.issued	2019-09-08	en_US
dc.identifier.citation	2019	en_US
dc.identifier.uri	http://hdl.handle.net/10453/138137
dc.description.abstract	The achievement of sustainable development has been a major challenge facing the concrete industry for years. In recent years there have been changes, both technical and policy driven, that have the potential to affect the availability of classified fly ash. The possible shortage of classified fly ash (CFA) supply has prompted researchers at UTS to examine the possible use of run-of-station fly ash (RFA) for use in concrete applications. In this paper, an experimental study was carried out to evaluate the influence of partially replacing cement with 20% RFA on the heat of hydration, and microstructure of blended cement pastes compared to the paste containing 20% CFA. In addition, the effects of RFA on fresh and hardened concrete properties of pavement mixes were examined and compared to CFA concrete mix. Only two lots of RFA from one single source were examined, and hence the variability and effectiveness of RFA from other sources cannot be generalised. Properties critical to the use of fly ash in pavement concrete are examined according to the R83 specification.	en_US
dc.relation.ispartof	29th Biennial National Conference of the Concrete Institute of Australia	en_US
dc.title	Investigation on the influence of run of station fly ash in concrete pavement construction	en_US
dc.type	Conference Proceeding
utslib.location.activity	Sydney, Australia	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.consider-herdc	false	en_US
pubs.finish-date	2019-09-11	en_US
pubs.publication-status	Published online	en_US
pubs.start-date	2019-09-08	en_US

Abstract:

The achievement of sustainable development has been a major challenge facing the concrete industry for years. In recent years there have been changes, both technical and policy driven, that have the potential to affect the availability of classified fly ash. The possible shortage of classified fly ash (CFA) supply has prompted researchers at UTS to examine the possible use of run-of-station fly ash (RFA) for use in concrete applications. In this paper, an experimental study was carried out to evaluate the influence of partially replacing cement with 20% RFA on the heat of hydration, and microstructure of blended cement pastes compared to the paste containing 20% CFA. In addition, the effects of RFA on fresh and hardened concrete properties of pavement mixes were examined and compared to CFA concrete mix. Only two lots of RFA from one single source were examined, and hence the variability and effectiveness of RFA from other sources cannot be generalised. Properties critical to the use of fly ash in pavement concrete are examined according to the R83 specification.

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http://hdl.handle.net/10453/138137