Laboratory and field evaluation of fluid bed combustion fly ash as granular road stabilizer

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dc.contributor.authorThenoux, Guillermo
dc.contributor.authorHalles, Felipe
dc.contributor.authorVargas, Angeles
dc.contributor.authorBellolio, Juan Pablo
dc.contributor.authorCarrillo, Hector
dc.date.accessioned2024-01-10T13:14:13Z
dc.date.available2024-01-10T13:14:13Z
dc.date.issued2007
dc.description.abstractThis paper presents the result of laboratory and field research on soil stabilization using fluid bed combustion fly ash. This type of ash is the result of the combustion of petroleum coke and limestone in an electric power generation plant (Petropower, located in the south of Chile), which makes it different from other types of ash used regularly in soil stabilization. The ash differs from the traditional ash used in soil stabilization, particularly because of (a) a high concentration of lime that may produce cementing compounds and (b) the presence of sulfates that may produce a secondary reaction such as the formation of gypsum and ettringite, resulting in a different level of expansion in some types of soils. The main objectives of the research were to characterize fluid bed combustion fly ash from the Petropower plant and to evaluate the technical feasibility of using this ash as a soil stabilizer. The laboratory and field research showed that this type of ash improves the mechanical properties and water susceptibility of most types of soils. Although laboratory experimentation proves that the secondary reaction produces soil expansion in clayey soils, field experimentation indicates that the secondary reaction that produces soil expansion may be controlled by an adequate laboratory design and an appropriate dose of fly ash.
dc.fechaingreso.objetodigital2024-05-10
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3141/1989-46
dc.identifier.issn0361-1981
dc.identifier.urihttps://doi.org/10.3141/1989-46
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78384
dc.identifier.wosidWOS:000249935200007
dc.information.autorucIngeniería;Thenoux G;S/I;99484
dc.issue.numero1989
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final41
dc.pagina.inicio36
dc.publisherNATL ACAD SCIENCES
dc.revistaTRANSPORTATION RESEARCH RECORD
dc.rightsregistro bibliográfico
dc.titleLaboratory and field evaluation of fluid bed combustion fly ash as granular road stabilizer
dc.typeartículo
sipa.codpersvinculados99484
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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