Investigating the Effect of Nanomaterials on Resistance Parameters of Clay Soil

Abstract

In recent years, nano technology has been significantly implemented in geotechnical engineering, especially for soil remediation. Using this technology has improved soil resistance parameters and led to the stabilization of many problematic soils. Clay soils, due to their nature, have a large dispersion on the surface of the earth. The widespread dispersion of these types of soils in the site of structures, describes the necessity of studying and investigating new methods of improving and amending the resistive properties of these soils. This research is a review of the use of nanotechnology for the improvement of soil resistive properties by geotechnical researchers.

Application of Nanotechnology in Soil Stabilization

“…Nanoclay is also found excellent stabilizer for fine grained soils when used at 1.5% by weight of dry soil [58,59] . It also increases the shear strength and decreases the angle of refraction when mixed in the silty soil [55,60] . But, freeze and thaw cycles decrease the compressive strength [61] .…”

“…A probable reason for decreased dry density was flocculation and agglomeration of soil particles and cation exchange reaction. But sometimes, lesser specific gravity and pozzolanic reactions could also be the reasons for the reverse effects [37,52,54,55] .…”