Performance of Nano-particles in stabilization of soil: a comprehensive review

Soil is considered as quintessence of particulate materials and we all know that soil consist of various particles of different sizes ranges from as large as 75mm to as less than 1nm. Considering these particle sizes, a new approach is proposed to use the nanoparticles in the geotechnical engineering to understand the nature of soil as nanoparticles will interact with soil particles more efficiently due to the advantage of their size i.e. 1nm to 100nm. Stability of soil under new construction sites is the major factor to achieve the required design criteria. Generally, cementitious supplementary materials like cement, lime, bentonite clay and fly ash are used several times to achieve the desired stability in the soil. As the new construction sites has been significantly increased in the area of poor-quality ground several new approaches of stabilizing the soil underneath are introduced and one of these techniques are using the nanoparticles to improve the index properties of soil as well as strength of soil so that desired stability can be achieved. Different types of nanomaterials which can be used for the purpose of stabilization of soil are SiO notsign 2, TiO2, Al2O3. In the present study, a systemic review to use these novel materials for the stability of soil is presented with detailed investigation (C) 2019 Elsevier Ltd. All rights reserved.