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GEOTECHNICAL PROPERTIES OF LATERITIC SOIL STABILIZED WITH BONE ASH AND HYDRATED LIME FOR ROAD CONSTRUCTION APPLICATIONS
Abstract:
The construction of durable and cost-effective roads is a crucial aspect of infrastructure development. However, the availability of suitable soil materials for road construction is often limited, especially in regions with lateritic soils. In this study, the geotechnical properties of lateritic soil stabilized with bone ash and hydrated lime were investigated for their potential application in road construction.
The research methodology involved laboratory testing on lateritic soil samples collected from a specific region. Bone ash, a waste material from the meat processing industry, and hydrated lime, a commonly used stabilizing agent, were added to the lateritic soil in varying proportions. The mixture was thoroughly mixed and compacted using standard Proctor compaction method. The geotechnical properties of the stabilized soil, including compaction characteristics, California Bearing Ratio (CBR), and shear strength parameters, were evaluated.
The results indicated that the addition of bone ash and hydrated lime significantly improved the geotechnical properties of the lateritic soil. The optimum proportion and mix design for the stabilization were determined based on the attained maximum dry density and optimum moisture content. The CBR values of the stabilized soil increased with the addition of bone ash and hydrated lime, indicating enhanced load-bearing capacity. The shear strength parameters, such as cohesion and internal friction angle, also exhibited favorable improvements.
Furthermore, the study explored the long-term durability and environmental sustainability aspects of the stabilized soil. The leaching behavior of the stabilized soil was assessed to evaluate its potential impact on surrounding groundwater quality. The findings suggested that the incorporation of bone ash and hydrated lime contributed to reduced leaching of contaminants from the stabilized soil, ensuring environmental compatibility.
In conclusion, the stabilization of lateritic soil with bone ash and hydrated lime demonstrated promising results for road construction applications. The improved geotechnical properties, including enhanced compaction characteristics, increased load-bearing capacity, and improved shear strength, make the stabilized soil a viable alternative for road construction in areas with limited access to suitable soil materials. Moreover, the environmental sustainability of the stabilization technique adds to its appeal as an eco-friendly solution for infrastructure development.
Keywords: Lateritic soil, bone ash, hydrated lime, road construction, geotechnical properties, stabilization, load-bearing capacity, shear strength, environmental sustainability.
GEOTECHNICAL PROPERTIES OF LATERITIC SOIL STABILIZED WITH BONE ASH AND HYDRATED LIME FOR ROAD CONSTRUCTION APPLICATIONS, GET MORE MATERIALS SCIENCE AND ENGINEERING
