Thesis
A study on strengthening of soil using stabilized flyash
In the present study, I tried to prove soil stabilization using stabilized flyash. for the stabilization of flyash, we need to improve the flash properties by adding some admixtures. in the present study, we are using lime and sodium silicate as additives to improve the soil properties. Individual geotechnical parameters like grain size distribution, liquid limit, OMC, MDD, Specific gravity and angle of internal friction of Fly ash were determined and then Fly ash was mixed with different proportions of lime (2-15%) and sodium silicate (1-4%). These mixes were tested to obtain the optimum percentage of lime and sodium silicate. The variation in shear parameters like cohesion and angle of shearing resistance was studied by conducting a direct shear test. All the tests were performed after a time period of 3hours starting from the completion of preparation of the sample. Each test was performed for the normal stresses of 0.5kg/cm2, 1kg/cm2, 1.5kg/cm2, 2kg/cm2 and 2.5 kg/cm2. The results are compiled in a graphical form to observe the trends for shear parameters. The results show remarkable improvement in strength characteristics for higher percentages of lime and sodium silicate. The Major challenge on behalf of engineers especially civil engineers is the disposal of industrial waste products and their storage. Nowadays most of the industries reusing the wastes in different areas like civil constructions, treatment of materials and others. This reuse of wastes is essential to overcome the hazardous effects of wastes on the environment. Fly Ash is one of the industrial wastes produced every year throughout the country. Fly ash is a fine powder obtained from burning of coal during the production of electricity. Disposal of Fly ash is a big problem, to minimize the disposal of Fly ash into large land, it was used as a construction material in civil engineering works like building materials embankments, and bricks making etc.
Published by: Sakshi Singh Rana, Chappa Damodar Naidu
Author: Sakshi Singh Rana
Paper ID: V4I6-1310
Paper Status: published
Published: November 29, 2018
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