Mechanical characterization of lime-stabilized rammed earth: Lime content and strength development
Metadatos
Mostrar el registro completo del ítemEditorial
Elsevier
Departamento
Universidad de Granada. Grupo de investigación TEP167Materia
Rammed earth Lime stabilization Strength development Mechanical characterization Carbonation Ultrasonic pulse velocity
Fecha
2022-07-21Referencia bibliográfica
Published version: Fernando Ávila, Esther Puertas, Rafael Gallego, Mechanical characterization of lime-stabilized rammed earth: Lime content and strength development, Construction and Building Materials, Volume 350, 2022, 128871, ISSN 0950-0618. https://doi.org/10.1016/j.conbuildmat.2022.128871
Resumen
Earth construction techniques, such as rammed earth, are present worldwide due to the availability of the material and its mechanical performance. Today they are also attracting attention as an environmentally friendly way of building, although additivation is usually needed. Lime stabilization is an interesting option with long tradition, well-known capacity to improve soil properties and limited environmental impact. This study evaluates the effect of increasing lime contents in the compressive strength and stiffness of rammed earth, and analyzes the strength development process of the material. Carbonation depth and ultrasonic pulse velocity are also evaluated due to their relationship with the mechanical behavior. The results show that 12% lime maximized the compressive strength and stiffness of the rammed earth material; the strength was mostly developed during the first month but needs over a hundred days to be fully developed. A good linear correlation between the ultrasonic pulse velocity and the compressive strength is observed.