U.S. Department of EnergyOffice of Scientific and Technical Information
Investigation of air-entraining admixture dosage in fly ash concrete
Abstract
The amount of air-entraining admixture (AEA) needed to achieve a target air content in fresh concrete can vary significantly with differences in the fly ash used in the concrete. The work presented in this paper evaluates the ability to predict the AEA dosage on the basis of tests on the fly ash alone. All results were compared with the dosage of AEA required to produce an air content of 6% in fresh concrete. Fly ash was sampled from six separate sources. For four of these sources, samples were obtained both before and after the introduction of 'low-NOx burners'. Lack of definitive data about the coal itself or the specifics of the burning processes prevents the ability to draw specific conclusions about the impact of low-NOx burners on AEA demand. Nevertheless, the data suggest that modification of the burning process to meet environmental quality standards may affect the fly ash-AEA interaction.
- Authors:
-
- Oklahoma State University, Stillwater, OK (United States)
- Publication Date:
- OSTI Identifier:
- 21107533
- Resource Type:
- Journal Article
- Journal Name:
- ACI Materials Journal
- Additional Journal Information:
- Journal Volume: 105; Journal Issue: 5; Journal ID: ISSN 0889-325X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; CONCRETES; FLY ASH; AIR; WASTE PRODUCT UTILIZATION; BURNERS; AIR POLLUTION ABATEMENT; NITROGEN OXIDES; CHEMICAL REACTIONS
Citation Formats
Ley, M T, Harris, N J, Folliard, K J, and Hover, K C. Investigation of air-entraining admixture dosage in fly ash concrete. United States: N. p., 2008.
Web.
Ley, M T, Harris, N J, Folliard, K J, & Hover, K C. Investigation of air-entraining admixture dosage in fly ash concrete. United States.
Ley, M T, Harris, N J, Folliard, K J, and Hover, K C. 2008.
"Investigation of air-entraining admixture dosage in fly ash concrete". United States.
@article{osti_21107533,
title = {Investigation of air-entraining admixture dosage in fly ash concrete},
author = {Ley, M T and Harris, N J and Folliard, K J and Hover, K C},
abstractNote = {The amount of air-entraining admixture (AEA) needed to achieve a target air content in fresh concrete can vary significantly with differences in the fly ash used in the concrete. The work presented in this paper evaluates the ability to predict the AEA dosage on the basis of tests on the fly ash alone. All results were compared with the dosage of AEA required to produce an air content of 6% in fresh concrete. Fly ash was sampled from six separate sources. For four of these sources, samples were obtained both before and after the introduction of 'low-NOx burners'. Lack of definitive data about the coal itself or the specifics of the burning processes prevents the ability to draw specific conclusions about the impact of low-NOx burners on AEA demand. Nevertheless, the data suggest that modification of the burning process to meet environmental quality standards may affect the fly ash-AEA interaction.},
doi = {},
url = {https://www.osti.gov/biblio/21107533},
journal = {ACI Materials Journal},
issn = {0889-325X},
number = 5,
volume = 105,
place = {United States},
year = {Mon Sep 15 00:00:00 EDT 2008},
month = {Mon Sep 15 00:00:00 EDT 2008}
}
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