Stabilization of Soils Using Chemical Admixtures: A Review

Abstract

Searching for the best soil stabilizer to overcome problems occur by the soft soils are still being the main concern, not only to achieve the required soil engineering properties but also by considering the cost and the effect to the environment. This review paper presents the results of experimental researches on soil stabilization by using the most chemical admixtures, which involved cement, lime and fly ash, and their effectiveness in the engineering properties of soil. Based on the literature review, the results show that addition of these chemical additives lead to significant improvement in workability, strength, durability and mechanical behaviour. On the other hand, it lead to a reduction in shrinkage, plasticity, compressibility and swell characteristics of soil. Also, the curing duration had significantly improved the strength properties of the stabilized soil with chemical additives. Using of each chemical additive and its suitability for a specific soil is highlighted in the research.

Bearing Capacity of Strip Footing on Lime Stabilized Expansive Clayey Soil

“…Through lime stabilization, the soil plasticity is decreased, while its shear strength, compressive strength and bearing capacity are enhanced [2,[5][6][7][8][9]. Such improvements are due to the number of chemical processes taking place in the presence of lime [10]. At the initial time of the lime addition, Ca ++ ions fixes to the surface of the clay mineral and the calcium ions replace most of the available exchangeable cations [11].…”