Rheological characteristics of self-compacting concrete mixtures containing metakaolin, ground granulated blast-furnace slag and fly ash

Sina Dadsetan, J. Bai

Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i gynhadleddadolygiad gan gymheiriaid

Crynodeb

Supplementary cementitious materials (SCMs) have been recently used in self-compacting concrete (SCC) in order to make it cost effective, better performance and also reduce the overall greenhouse gas emissions associated with the production of concrete. In this study, the rheological properties of 18 SCC mixtures with various SCMs were investigated for a constant slump flow value. In order to achieve this, Portland Cement (PC) as the main binder were replaced by various percentage of Metakaolin (MK), Ground Granulated Blast-furnace Slag (GGBS) and Fly Ash (FA) in two water/binder ratios. Results showed that MK increased high range water reducing admixture (HRWRA) demand and decreased rheological aspects due to the finer particles and also higher amount of aluminium. However the opposite tendency was observed when FA was incorporated with PC as the spherical fly ash particles makes it easier for the SCC mix to flow. Moreover, substitution of PC with GGBS increased HRWRA required in the SCC mixture having constant slump flow but no change on the other rheological properties. Scanning Electron Microscopy (SEM) and Energy dispersive X-ray spectroscopy (EDS) were used to understand the microstructural properties of SCMs.
Iaith wreiddiolSaesneg
TeitlProceedings of the Fourth International Conference on Sustainable Construction Materials and Technologies
Is-deitlVolume 1, Las Vegas, Nevada, USA
GolygyddionNader Ghafoori, Peter Claisse, Eshmaiel Ganjian
CyhoeddwrCreateSpace Independent Publishing Platform
Nifer y tudalennau11
Cyfrol1
ISBN (Argraffiad)978-1543111583
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 2016
DigwyddiadFourth International Conference on Sustainable Construction Materials and Technologies - University of Nevada, Las Vegas, Yr Unol Daleithiau
Hyd: 7 Awst 201611 Awst 2016
Rhif y gynhadledd: 4th

Cyfres gyhoeddiadau

EnwSustainable Construction Materials and Technologies

Cynhadledd

CynhadleddFourth International Conference on Sustainable Construction Materials and Technologies
Teitl crynoSCMT4
Gwlad/TiriogaethYr Unol Daleithiau
DinasLas Vegas
Cyfnod7/08/1611/08/16

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