MARBLE DUST FOR ENHANCING SOIL STABILITY: GEOTECHNICAL INVESTIGATION AND STABILIZATION IN WELL GRADED SANDY SOIL

Abstract

To ensure the stability of construction for long term, the focus is on the adoption of sustainable and economical soil stabilization solutions. This research report includes a thorough investigation into using marble dust as a soil stabilizer for improving soil stability in wellgraded sand soil. The goal of this study is to look at the possible advantages and potential impact of marble dust in enhancing the geotechnical behavior of well-graded sand soil. A geotechnical investigation was conducted to assess the physical and mechanical qualities of the well-graded sand soil. The shear strength behavior of soil is investigated, which is important for multiple geotechnical problems. Moreover, it is observed that soft pockets are found in many soil conditions. This soil type has a low bearing capacity, as a result, it cannot withstand any high loading conditions. So, multiple direct shear tests were performed on the samples with increasing percentages (5%, 10%, 15%, and 20%) of marble dust (weight basis) to determine the shear strength behavior of the two types of dry sandy soil samples. The experimental results demonstrate that when the amount of marble dust in each sample increases, the angle of internal friction lowers significantly, and cohesiveness increases. Thus, adding marble dust can improve soil stability, and it can help to use shallow foundations than deep foundations as it will be economically an appropriate and viable idea