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Characteristics of Concrete Containing Fly Ash With Hg-Adsorbent Open Access


Other title
high volume fly ash
image analysis
powdered activated carbon
air-void characteristics
permeable voids
fly ash
Type of item
Degree grantor
University of Alberta
Author or creator
Mahoutian, Mehrdad
Supervisor and department
Lubell, Adam (Civil and Environmental Engineering)
Bindiganavile, Vivek (Civil and Environmental Engineering)
Examining committee member and department
Al-Hussein (Civil and Environmental Engineering)
Adeeb, Samer (Civil and Environmental Engineering)
Xu, Zhenghe (Chemical and Materials)
Department of Civil and Environmental Engineering
Structural Engineering
Date accepted
Graduation date
Master of Science
Degree level
The present study has focused on the effects of Powdered Activated Carbon (PAC) in fly ash on the air-entraining admixture demand and consequent properties of concrete. An extensive laboratory test program was completed during this investigation. Three series of mixes were designed to evaluate the effect of PAC as an Hg-adsorbent on the fresh and hardened properties of concrete containing class F fly ash. In addition to concrete with normal volume fly ash (less than 50% replacement by weight of cement), concrete with high volume fly ash was also cast. Fresh properties including the air void content and density were evaluated. Permeable air voids and compressive strength of hardened concrete at four different ages were also measured. Finally, the air void content, specific surface area, spacing factor and shape factor of hardened concrete were determined using the image analysis technique. The results of this study show that the fly ash if injected with PAC in front of the precipitator has insignificant effect on the mechanical properties and air-void network which affect durability (specifically freeze and thaw resistance) of concrete.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
Think globally, build locally congress, fib-PCI, 2010, Washington D.C., USA.

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File author: Mehrdad Mahoutian
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