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Mineralogy of western fly ash

McCarthy, Gregory J. / Swanson, Kevin D. / Keller, Lindsay P. / Blatter, Walter C.

AbstractTwenty-six fly ash specimens from North Dakota, Wyoming and Montana lignite and sub-bituminous source coals have been studied in detail by X-ray diffraction. Chemically, these western fly ashes are characterized by higher CaO+MgO+SO3 contents and lower Al2O3+SiO2 contents than eastern bituminous fly ashes. These western fly ashes have greater proportions of crystalline material. The characteristic phases are quartz, lime, periclase, anhydrite, ferrite spinel, tricalcium aluminate, merwinite and melilite. Alkali sulfates, a sodalite structure phase and hematite also occur in some fly ashes.

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Mineralogy of western fly ash

McCarthy, Gregory J. / Swanson, Kevin D. / Keller, Lindsay P. / Blatter, Walter C.

AbstractTwenty-six fly ash specimens from North Dakota, Wyoming and Montana lignite and sub-bituminous source coals have been studied in detail by X-ray diffraction. Chemically, these western fly ashes are characterized by higher CaO+MgO+SO3 contents and lower Al2O3+SiO2 contents than eastern bituminous fly ashes. These western fly ashes have greater proportions of crystalline material. The characteristic phases are quartz, lime, periclase, anhydrite, ferrite spinel, tricalcium aluminate, merwinite and melilite. Alkali sulfates, a sodalite structure phase and hematite also occur in some fly ashes.

Mineralogy of western fly ash

McCarthy, Gregory J. / Swanson, Kevin D. / Keller, Lindsay P. / Blatter, Walter C.

AbstractTwenty-six fly ash specimens from North Dakota, Wyoming and Montana lignite and sub-bituminous source coals have been studied in detail by X-ray diffraction. Chemically, these western fly ashes are characterized by higher CaO+MgO+SO3 contents and lower Al2O3+SiO2 contents than eastern bituminous fly ashes. These western fly ashes have greater proportions of crystalline material. The characteristic phases are quartz, lime, periclase, anhydrite, ferrite spinel, tricalcium aluminate, merwinite and melilite. Alkali sulfates, a sodalite structure phase and hematite also occur in some fly ashes.

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Title:

Mineralogy of western fly ash

Contributors:

McCarthy, Gregory J. (author) / Swanson, Kevin D. (author) / Keller, Lindsay P. (author) / Blatter, Walter C. (author)

Published in:

Cement and Concrete Research ; 14 ; 471-478

Publication date:

1983-02-17

Size:

8 pages

ISSN:

DOI:

https://doi.org/10.1016/0008-8846(84)90121-2

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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