Experimental studies on nanomaterials for soil improvement: a review

Abstract

With the rapid development of nanotechnology and multidisciplinary cross applications and the limitations of traditional materials, nanomaterials are being introduced for soil improvement. This paper describes and examines the potential benefits of nanotechnology for innovative solutions in the soil improvement sector. Studies on nanomaterials applied in geotechnical and geological engineering are reviewed to demonstrate how these nanoparticles work in soil improvement. Carbon nanotubes are used to reinforce soil by improving compressive strength. Nano bentonite is used as a drilling fluid additive and additive composite to improve the soil mechanic properties. Colloidal silica and laponite are used to mitigate or prevent the liquefaction of soils based on special rheological properties. Furthermore, this paper discusses the microscopic characteristics and mechanism of nanomaterials in soil improvement, and the advantages of nanomaterials compared with traditional grouting materials. Research on methods that apply nanomaterials for soil improvement is very promising and enhances our understanding of the relationship between nanotechnology and geotechnical engineering through innovative approaches.