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Classification and Characterization of Ponded Coal Combustion Residuals Using In Situ Methods
The coal-fired electric power generation industry historically managed the long-term storage of coal combustion residuals (CCRs) by sluicing these generally sand- and silt-sized materials into impoundments. These materials present significant challenges when assessing their engineering parameters as the materials are not typical of traditional geo-materials and standard methods for interpretation are generally inadequate. Sample disturbance is inevitable between sample recovery and laboratory testing and so characterization based on in situ data is generally preferred. This paper presents a summary of in situ data from four CCR impoundments in the Eastern United States. Estimates of unit weight, shear strength, and stiffness are presented alongside comparisons to laboratory test data where available. Approaches for classifying different types of CCRs are presented.
Classification and Characterization of Ponded Coal Combustion Residuals Using In Situ Methods
The coal-fired electric power generation industry historically managed the long-term storage of coal combustion residuals (CCRs) by sluicing these generally sand- and silt-sized materials into impoundments. These materials present significant challenges when assessing their engineering parameters as the materials are not typical of traditional geo-materials and standard methods for interpretation are generally inadequate. Sample disturbance is inevitable between sample recovery and laboratory testing and so characterization based on in situ data is generally preferred. This paper presents a summary of in situ data from four CCR impoundments in the Eastern United States. Estimates of unit weight, shear strength, and stiffness are presented alongside comparisons to laboratory test data where available. Approaches for classifying different types of CCRs are presented.
Classification and Characterization of Ponded Coal Combustion Residuals Using In Situ Methods
Fuggle, Andrew (author) / Jin, Longde (author) / Hebeler, Gregory (author)
Geo-Congress 2022 ; 2022 ; Charlotte, North Carolina
Geo-Congress 2022 ; 525-535
2022-03-17
Conference paper
Electronic Resource
English
Classification and Characterization of Ponded Coal Combustion Residuals Using In Situ Methods
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