Effectiveness of Alccofine, Zycobond, and Terrasil as Clayey Soil Stabilizer: A review

Since the last two decades, India has seen a significant increase in infrastructure development, which has resulted in a rapid increase in pavement construction and structural foundation. Pavements and foundations for structures are generally laid on the soft ground during this process which is highly unfavorable for construction. Clayey soil is a difficult soil to work with because it is cohesive, highly unstable, and prone to volumetric shrinkage, has low shear strength, and is susceptible to moisture. The CBR of these subgrade soils is too low, causing the thickness of the pavement laminas to increase. It creates an undesirable requirement for usage of large number of natural resources. A cost-effective solution would be to convert locally available difficult soil into suitable construction material. So, first method is to ameliorate the properties of the available soil so as to meet the requirements, a process known as soil stabilization. The current study's scope is limited to investigating, the techniques of the stabilization process with respect to the CBR values as the CBR is the most important factor in determining the base material quality for the said purpose. This study compares results from different experiments conducted at different researchers. The effect of Zycobond and Terrasil in combination with Alccofine on clayey soil in various ranges was explored in this paper.