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CHAPTER 18 SOIL STABILIZATION Soil stabilization may be broadly defined as the alteration or preservation of one or more soil properties to improve the engineering characteristics and performance of a soil. This chapter is intended to provide you with a brief overview of soil stabilization in terms of (1) stabilization methods, (2) the types and selection of various chemical stabilizers used in soil stabilization and (3) general guidance and information relative to the design and testing of soil-cement and soil-bituminous mixtures. For a thorough understanding of the subject of soil stabilization, you should combine the study of this chapter with the study of the various References cited within the chapter. METHODS OF STABILIZATION The two general methods of stabilization are mechanical and additive. The effectiveness of stabilization depends upon the ability to obtain uniformity in blending the various materials. Mixing in a stationary or traveling plant is preferred; however, other means of mixing, such as scarifies, plows, disks, graders, and rotary mixers, have been satisfactory. The method of soil stabilization is determined by the amount of stabilizing required and the conditions encountered on the project. An accurate soil description and classification is essential to the selection of the correct materials and procedures. Table 18-1 lists the
Table 18-1.Stabilization Methods Most Suitable for Specific Applications most suitable treatments for various soil types to stabilize these soils for different objectives |
 
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