Under the title (Use of Dynamic Cone Penetration Test for Rapid Evaluation of Rubberized Subgrade Soils) the thesis was submitted by the researcher Safaa Muhammad Ali to the Department of Civil Engineering at the University of Kerbala. The thesis dealt with the type of soil and its resistance to loads in the process of designing roads and determining their use. Due to the fact that the soil at Holy Kerbala is almost gypsum soil, therefore, this study revolves around this soil type. Reasons that make the study important can be, exposing the gypsum soil to water, to cover the urban expansion imposed in the governorate as a result of the increasing population and the requirements of roads in it.
The study aims to improve the properties of weak sandy soil, which contains a high percentage of gypsum, up to about 12%, which is classified as moderate gypsum soil. A comprehensive test program was conducted to evaluate the properties of the treated soil. As for the results obtained from experimental work on a theoretical model created by KENPAVE software to evaluate the performance of stabilized soils under different axial load values. Cementing improves shear resistance, compressive stress, Nd, and reduces the damage ratio.
