Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Use of Standard and Off-Spec Fly Ashes for Soil Stabilization
There has been significant utilization of standard fly ashes, Class C and Class F fly ashes, in the cement industry and in soil stabilization applications. However, the majority of the fly ashes that do not satisfy the chemical standards [off-specification (off-spec) fly ashes] have been disposed in landfills because of their unfavorable chemical properties such as high carbon content or high content. In this study, a clay soil was stabilized with different proportions of the standard and off-spec fly ashes. A series of unconfined compression (UC) tests were conducted on the specimens that were prepared to observe the suitability of the off-spec fly ashes for soil stabilization. The test results indicated that the off-spec fly ashes showed superior performance compared with the standard fly ashes due to their high CaO contents regardless of their and contents. It was recommended that chemical- and performance-based standards should be used instead of only chemical-based standards to determine whether a selected fly ash is suitable for soil stabilization.
Use of Standard and Off-Spec Fly Ashes for Soil Stabilization
There has been significant utilization of standard fly ashes, Class C and Class F fly ashes, in the cement industry and in soil stabilization applications. However, the majority of the fly ashes that do not satisfy the chemical standards [off-specification (off-spec) fly ashes] have been disposed in landfills because of their unfavorable chemical properties such as high carbon content or high content. In this study, a clay soil was stabilized with different proportions of the standard and off-spec fly ashes. A series of unconfined compression (UC) tests were conducted on the specimens that were prepared to observe the suitability of the off-spec fly ashes for soil stabilization. The test results indicated that the off-spec fly ashes showed superior performance compared with the standard fly ashes due to their high CaO contents regardless of their and contents. It was recommended that chemical- and performance-based standards should be used instead of only chemical-based standards to determine whether a selected fly ash is suitable for soil stabilization.
Use of Standard and Off-Spec Fly Ashes for Soil Stabilization
Yilmaz, Yuksel (Autor:in) / Coban, Haluk Sinan (Autor:in) / Cetin, Bora (Autor:in) / Edil, Tuncer B. (Autor:in)
04.12.2018
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Use of Standard and Off-Spec Fly Ashes for Soil Stabilization
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