Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Water Retention Characteristics of Compacted Coal Combustion Residuals
The handling and disposal strategies of coal combustion residuals (CCRs) such as fly ash, bottom ash, and gypsum in the U.S. are undergoing a paradigm shift from wet sloughing in a basin to dry disposal in an engineered landfill. This shift is motivated in part due to recently implemented regulations by the U.S. Environmental Protection Agency. As part of these new approaches of handling and disposal it will be important to investigate compaction characteristics as well as water infiltration behavior of CCRs. This paper presents results of an ongoing study where 7 different CCRs materials from different utilities in the U.S. have been characterized. Specifically, the paper presents geotechnical index properties, compaction curves, X-ray fluorescence, X-ray diffraction, and water retention characteristics of compacted CCRs samples. Also discussed is the relevance of these results towards alternative capping systems that would involve compacted CCRs materials treated with organosilane chemicals to render the cap essentially hydrophobic.
Water Retention Characteristics of Compacted Coal Combustion Residuals
The handling and disposal strategies of coal combustion residuals (CCRs) such as fly ash, bottom ash, and gypsum in the U.S. are undergoing a paradigm shift from wet sloughing in a basin to dry disposal in an engineered landfill. This shift is motivated in part due to recently implemented regulations by the U.S. Environmental Protection Agency. As part of these new approaches of handling and disposal it will be important to investigate compaction characteristics as well as water infiltration behavior of CCRs. This paper presents results of an ongoing study where 7 different CCRs materials from different utilities in the U.S. have been characterized. Specifically, the paper presents geotechnical index properties, compaction curves, X-ray fluorescence, X-ray diffraction, and water retention characteristics of compacted CCRs samples. Also discussed is the relevance of these results towards alternative capping systems that would involve compacted CCRs materials treated with organosilane chemicals to render the cap essentially hydrophobic.
Water Retention Characteristics of Compacted Coal Combustion Residuals
Dumenu, Livingstone (Autor:in) / Pando, Miguel A. (Autor:in) / Ogunro, Vincent O. (Autor:in) / Daniels, John L. (Autor:in) / Moid, Merhab I. (Autor:in) / Rodriguez, Carlos (Autor:in)
Geotechnical Frontiers 2017 ; 2017 ; Orlando, Florida
Geotechnical Frontiers 2017 ; 403-413
30.03.2017
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Water Retention Characteristics of Compacted Coal Combustion Residuals
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