International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
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e-ISSN: 2395 -0056 p-ISSN: 2395-0072
Effect of Wood Shaving Ash on Index Properties of Black Cotton Soil Rashmi Bade1, Nuzra Zainab Khan2, Jaya Sahare3, Faisal Ameen4, Danish Ahmed5 1Assistant
professor, Dept. of Civil Engineering, Anjuman College of engineering and technology, Maharashtra, India 2Student of Graduation, Dept. of Civil Engineering, Anjuman College of engineering and technology, Maharashtra, India 3 Student of Graduation, Dept. of Civil Engineering, Anjuman College of engineering and technology, Maharashtra, India 4Student
of Graduation, Dept. of Civil Engineering, Anjuman College of engineering and technology, Maharashtra, India 5Student of Graduation, Dept. of Civil Engineering, Anjuman College of engineering and technology, Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------1. INTRODUCTION: Abstract -The amount of waste generated from varied sources has increased in recent years due to increase in population, industrialization, social as well as economic activities. It has become the need of the hour to utilize this waste in the best manner yet to encourage the concept of reusing in waste management and thus reduce the cost of waste disposal. One such method of reusing is that by using it in the process of soil stabilization. Previous studies have shown how various materials can be used to stabilize as well as improve upon the properties of problematic soil. It is known black cotton soil is one of the most problematic soils that engineers have to deal with. This soil has a tendency to shrink and swell excessively due to which it becomes a highly plastic soil. This research work is mainly focused on assessing the effects of ash derived from powdered wood shaving on the plasticity index of black cotton soil. The research is done on soil derived from MIHAN area of Nagpur, Maharashtra using 15, 20 and 25 % of the above mentioned ash by mass of soil sample. In order to conclude our research, laboratory tests on the liquid limit and plastic limit of soil were performed to determine the plasticity index of the soil, first of the soil alone and then after addition of additives in accordance with IS 2720 of geotechnical engineering. The result indicates that ash from wood shavings is suitable in improving the plasticity of soil having plasticity index 25 Key Words: Black cotton soil, Organic additives, wooden shavings ash, Plasticity index, plasticity of soil
Black cotton soils a highly fertile soil for agricultural purposes. They arecharacterized by high moisture retaining capacity, are extremely compact when wet and develops deep, wide cracks upon drying. Black cotton soil occurs mostly in the central and western parts and covers approximately 20% of the total area of India. It contains montmorillonite clay which renders it its expansive property. Due to its high shrink and swell property, black cotton soil has been a challenge to the highway engineers and structural engineers alike. Therefore, the sub grade and its undesirable and highly sensitive properties need to be modified using a suitable ground improvement or stabilizing technique. A suitable stabilizing or ground improvement technique usually involves modification in undesirable characteristics of problem soil. This ultimately leads to improvement of engineering performance of subgrade. For airfield and road pavements, main purpose is to increase stability of soil while taking the approach wherein construction cost is minimized by making best use of locally available materials. To overcome this challenge and to find a suitable stabilizing agent that is both easily found everywhere, cheaply available and is a byproduct that usually goes to waste, we finalized upon ash derived shavings of wood (bhusa). The possibility to try and use this organic admixture to improve upon the plasticity of soil has been discussed in detail.
2. MATERIAL: A) Material in use: 1. Soil: Expansive black cotton soil collected from the MIHAN area of Nagpur, Maharashtra was used. The basic index properties are as follows: 1. Liquid limit – 56%
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