Soil stabilization

About: Soil stabilization is a research topic. Over the lifetime, 3161 publications have been published within this topic receiving 48437 citations.

A comparative review of soil modification methods

Abstract: One of the major focuses of geotechnical engineering, foundation engineering and soil mechanics is to make the soil upon which every civil engineering project is founded more ideal and one that meets the requirements of every civil construction. This technique is known as soil stabilization or modification. The present review paper tries to bring to limelight that soil stabilization or soil modification methods and in essence compares the advantage of one over another. This will assist researchers and geotechnical engineers in making and choosing from many stabilization methods based on materials available. From the foregoing, it has been established from previous geophysical studies over the years that mechanical stabilization technique of soil is the best soil stabilization method in Nigeria today because of its availability and affordability. Consequently, the present work advises constructors on the benefits of choosing mechanical stabilization method over the others.

The efficacy of lignosulfonate in controlling the swell potential of expansive soil and its stabilization mechanisms

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Effect of Anisotropy of Fibers on the Stress-Strain Response of Fiber-Reinforced Soil

Abstract: Reinforcing soil with fibers is a useful method for improving the strength and settlement response of soil. The soil and fiber characteristics and their interaction are some of the major factors affecting the strength of reinforced soil. The fibers are usually randomly distributed in the soil, and their orientation has a significant effect on the behavior of the reinforced soil. In the paper, a study of the effect of anisotropic distribution of fibers on the stress-strain response is presented. Based on the concept of the modified Cam clay model, an analytical model was formulated for the fiber-reinforced soil, and the effect of fiber orientation on the stress-strain behavior of soil was studied in detail. The results show that, as the inclination of fibers with the horizontal plane increased, the contribution of fibers in improving the strength of fiber-reinforced soil decreased. The effect of fibers is maximum when they are in the direction of extension, and vice versa. (C) 2014 American Society of Civil Engineers.

Soil Stabilization Using Waste Plastic Materials

Abstract: Expansive clay soils are the types of soils whose volume changes with the change in water content. They have a behavior of swelling and shrinking that is a serious hazard to structures built over them. Expansive soils are abundantly existing soil types in Ethiopia, particularly Addis Ababa. This paper shows the outcomes of an attempt to reinforce and stabilize expansive clay soil with plastic bottle strips. The plastic strips were prepared and added at three different mixing ratios (0.5%, 1% and 2%) by weight and in three different aspect ratios (5 mm × 7.5 mm, 10 mm × 15 mm, 15 mm × 20 mm). The experimental results showed that there was a significant improvement in shear strength parameters. The swelling and desiccation cracking behavior of the soil were also expressively reduced. There was a substantial reduction in the optimum moisture content and slight increment in maximum dry density. The optimum plastic size (aspect ratio) and plastic content that results in optimum result can be selected based on the importance of the selection parameter for a specified engineering work. Stabilizing expansive clay soils with waste plastic bottles simultaneously solves the challenges of improper plastic waste recycling that is currently a teething problem in most developing countries. The results obtained from this study favorably suggest that inclusion of this material in expansive soils would be effective for ground improvement in geotechnical engineering.