Soil stabilization

Soil is one of the main elements in the environment, it covers most of the dry part of the Earth's crust, and the content of the materials, including salts, it is very important for the green vegetation cover on earth.
On the other hand soil is one of the main components of construction, study of soil in the workplace is one of the first steps in the beginning of the project, and the lack of knowledge of soil characteristics and types and how to deal with it may lead to the failure of projects in some cases.
Thus, from this perspective, soil had its own science to study its types, its characteristics and how to improve it, and what are the additions that can make a better result for the soil and thus to the whole construction project. When soil is used in construction, in addition to stability is also important as differential settlement may have bad effect to the project. Compacted soil and stabilized soil are often used in sub-base or base course of highway pavements and also the other constructions. The soil is considered as one of the most important and principle construction materials. This research is all about the addition of two chemicals into the soil, then study the properties of soil after each addition, and then compare the properties of the soil without additives with the properties of soil after each addition of these two. In English, there will be three samples of soil plus the Soil as control sample, each sample of these three will be divided into two, one of these two parts will be added to silica fume, and the second one will be added to lime, and then the comparison will be between those seven samples depending on the properties. The two chemicals, which will be added to the soil in this research, are Silica Fume and Lime.
Soil that will be used for this study is disturbed soil and will be defined exactly in chapter four. The basic physical tests like Grain Ssize Analysis, Atterberg Limits and compression test (which will be conducted during