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Title: Comprehensive phase characterization of crystalline and amorphous phases of a Class F fly ash

Abstract

A comprehensive approach to qualitative and quantitative characterization of crystalline and amorphous constituent phases of a largely heterogeneous Class F fly ash is presented. Traditionally, fly ash composition is expressed as bulk elemental oxide content, generally determined by X-ray fluorescence spectroscopy. However, such analysis does not discern between relatively inert crystalline phases and highly reactive amorphous phases of similar elemental composition. X-ray diffraction was used to identify the crystalline phases present in the fly ash, and the Rietveld quantitative phase analysis method was applied to determine the relative proportion of each of these phases. A synergistic method of X-ray powder diffraction, scanning electron microscopy, energy dispersive spectroscopy, and multispectral image analysis was developed to identify and quantify the amorphous phases present in the fly ash.

Authors:
 [1]; ;  [2]
  1. National Institute for Standards and Technology, Gaithersburg, MD 20899 (United States)
  2. University of Texas at Austin, Austin, TX 78712 (United States)
Publication Date:
OSTI Identifier:
21344741
Resource Type:
Journal Article
Journal Name:
Cement and Concrete Research
Additional Journal Information:
Journal Volume: 40; Journal Issue: 1; Other Information: DOI: 10.1016/j.cemconres.2009.08.029; PII: S0008-8846(09)00240-3; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0008-8846
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AMORPHOUS STATE; FLY ASH; IMAGE PROCESSING; OXIDES; PHASE STUDIES; SCANNING ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY FLUORESCENCE ANALYSIS; X-RAY SPECTROSCOPY; AEROSOL WASTES; ASHES; CHALCOGENIDES; CHEMICAL ANALYSIS; COHERENT SCATTERING; COMBUSTION PRODUCTS; DIFFRACTION; ELECTRON MICROSCOPY; MICROSCOPY; NONDESTRUCTIVE ANALYSIS; OXYGEN COMPOUNDS; PROCESSING; RESIDUES; SCATTERING; SPECTROSCOPY; WASTES; X-RAY EMISSION ANALYSIS

Citation Formats

Chancey, Ryan T., E-mail: rchancey@architecturalengineers.co, Stutzman, Paul, Juenger, Maria C.G., and Fowler, David W. Comprehensive phase characterization of crystalline and amorphous phases of a Class F fly ash. United States: N. p., 2010. Web. doi:10.1016/j.cemconres.2009.08.029.
Chancey, Ryan T., E-mail: rchancey@architecturalengineers.co, Stutzman, Paul, Juenger, Maria C.G., & Fowler, David W. Comprehensive phase characterization of crystalline and amorphous phases of a Class F fly ash. United States. https://doi.org/10.1016/j.cemconres.2009.08.029
Chancey, Ryan T., E-mail: rchancey@architecturalengineers.co, Stutzman, Paul, Juenger, Maria C.G., and Fowler, David W. 2010. "Comprehensive phase characterization of crystalline and amorphous phases of a Class F fly ash". United States. https://doi.org/10.1016/j.cemconres.2009.08.029.
@article{osti_21344741,
title = {Comprehensive phase characterization of crystalline and amorphous phases of a Class F fly ash},
author = {Chancey, Ryan T., E-mail: rchancey@architecturalengineers.co and Stutzman, Paul and Juenger, Maria C.G. and Fowler, David W},
abstractNote = {A comprehensive approach to qualitative and quantitative characterization of crystalline and amorphous constituent phases of a largely heterogeneous Class F fly ash is presented. Traditionally, fly ash composition is expressed as bulk elemental oxide content, generally determined by X-ray fluorescence spectroscopy. However, such analysis does not discern between relatively inert crystalline phases and highly reactive amorphous phases of similar elemental composition. X-ray diffraction was used to identify the crystalline phases present in the fly ash, and the Rietveld quantitative phase analysis method was applied to determine the relative proportion of each of these phases. A synergistic method of X-ray powder diffraction, scanning electron microscopy, energy dispersive spectroscopy, and multispectral image analysis was developed to identify and quantify the amorphous phases present in the fly ash.},
doi = {10.1016/j.cemconres.2009.08.029},
url = {https://www.osti.gov/biblio/21344741}, journal = {Cement and Concrete Research},
issn = {0008-8846},
number = 1,
volume = 40,
place = {United States},
year = {Fri Jan 15 00:00:00 EST 2010},
month = {Fri Jan 15 00:00:00 EST 2010}
}