Utilization of Marble Powder and Magnesium Phosphate Cement for Improving the Engineering Characteristics of Soil

In this study, the effects of waste marble powder and magnesium phosphate cement on the properties of soil were investigated. The incorporation of waste marble powder (MP) and (MPC) magnesium phosphate cement as a novel additive, lead the significant environmental and economic contributions in soil stabilization. The key properties of natural soil were extracted and several tests, such as specific gravity, Atterberg limits, sieve analysis, unconfined compression strength test, Direct shear box test, modified Proctor test, California bearing ratio, and Scanning electron microscopy test were performed on soil samples prepared with different percentages of MPC and MP, i.e. 0%, 2.5%, 5%, 7.5% and 0%, 5%, 10%, 15%, respectively. An unconfined strength test was used to obtain desired comprehensive strengths following 7, 14, 28 days of curing time. The overall experimental results revealed that MP and MPC can be added to enhance the stability of the soil. While usability and effectiveness of MPC and MP are cost-effective and eco-friendly as the substitution of natural soil for deep foundations.