Availability of resilient modulus and permanent deformation laboratory tests of stabilized soil with municipal solid waste fly ash for pavements base

G.O.C. Vizcarra, M.D.T. Casagrande, L. Szeliga

In the proceedings of: GEO2011: 64th Canadian Geotechnical Conference, 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering

Session: Laboratory Testing

ABSTRACT: This study presents the results of testing for resilient modulus and permanent deformation to evaluate the mechanical properties of a soil stabilized with fly ash from municipal solid waste incineration. The soil tested is a non-lateritic clayey soil, which is not suitable for use in pavement works. The addition of fly ash improved reduced its expansibility and modify their mechanical properties, these being dependent on the MSW fly ash content, moisture and number of load cycles. It was performed a paving project to assess their competitiveness as a base material for pavements. The results of this project showed that the soil stabilized with fly ash is competitive for low volume traffic roads, with the advantages of minimizing the environmental problems caused by solid waste disposal and waste incineration.

RESUMEN: Este estudio presenta los resultados de ensayos para módulo resiliente y deformación permanente para evaluar lãs propiedades mecánicas de un suelo estabilizado con ceniza volante de incineración de residuos sólidos municipales. El suelo testado es arcilloso no lateritico, el cual no es recomendable para su utilización en pavimentos. La adición de ceniza volante redujo su expansibilidad y modificó sus propiedades mecánicas, siendo estas dependientes del porcentaje de ceniza volante de RSM, humedad y número de ciclos de carga. Fue desarrollado un proyecto de pavimento para evaluar la competencia de este material como pavimento de bajo volumen de tráfico. Los resultados de este proyecto muestran que el suelo estabilizado con ceniza volante es competitivo para vías de bajo volumen de tráfico, con las ventajas de reducir los problemas ambientales causados por la disposición de residuos sólidos e incineración de residuos.

Please include this code when submitting a data update: GEO2011_335

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