Use of Nanomaterials in the Stabilization of Expansive Soils into a Road Real-Scale Application
Metadatos
Mostrar el registro completo del ítemEditorial
MDPI
Materia
Soil stabilization Nanomaterials Real-scale application Mechanical behavior Life cycle assessment
Fecha
2020-07-08Referencia bibliográfica
Rosales, J., Agrela, F., Marcobal, J. R., Diaz-López, J. L., Cuenca-Moyano, G. M., Caballero, Á., & Cabrera, M. (2020). Use of Nanomaterials in the Stabilization of Expansive Soils into a Road Real-Scale Application. Materials, 13(14), 3058.[doi:10.3390/ma13143058]
Patrocinador
FEDER/Ministerio de Ciencia, Innovacion y Universidades-Agencia Estatal de Investigacion/Ecaryse RCT-2017-6202-5Resumen
Stabilization is a traditional strategy used to improve soils with the main objective of
ensuring that this base is compliant with the technical specifications required for the subsequent
development of different infrastructures. This study proposes the use of commercial nanomaterials,
based on a solution of silicates, to improve the technical characteristics and bearing capacity of the
expansive soil. A physical–chemical property study was carried out on the additive nanomaterial.
Subsequently, different mixtures of expansive soil, selected soil and artificial gravel with quicklime
and commercial nanomaterials were developed to evaluate the improvement obtained by the use of
nanomaterials in the technical characteristics of the soil. Compressive strength and the Californian
Bearing Ratio index were considerably increased. A full-scale study was carried out in which the
nanomaterial product was applied to two different sections of stabilized road compared to a control
section. The results obtained showed that the use of nanomaterial led to the possibility of reducing the
control section by 30 cm, thus achieving less use of quicklime and a mechanical means for preparing
the road section. The use of commercial nanomaterial improved the behavior of the stabilized
sub-base layer. Through life cycle assessment, this study has shown that the use of nanomaterials
reduces the environmental impact associated with soil stabilization.