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Indian Journal of Ecology
Year : 2020, Volume : 47, Issue : 4
First page : ( 955) Last page : ( 958)
Print ISSN : 0304-5250.

Stabilization of marine soil of visakhapatnam port area by using fly ash material

Alekhya V.*, Rao A. Rama1

Department of Civil Engineering, Andhra University, Visakhapatnam-530 003, India

1Department of Agricultural Engineering, Sri KinjarapuYerran Naidu College of Agricultural Sciences, Etcherla-53 2410, India

*alekhyavarri96@gmail.com

Online published on 9 March, 2021.

Abstract

Fly ash is one of the by-products which attributes to the improvement of strength and compressibility characteristics of soils. The soil sample for the present study was taken from port trust area of Visakhapatnam inAndhra Pradesh. The raw material fly ash was also taken from Visakhapatnam unit of NTPC (National Thermal Power Corporation) and used for study and experimentation. In the present study, some of the laboratory tests have been carried out to determine the properties of marine clay taken and also highlighted the CBR (California Bearing Ratio) test which was conducted before and after addition of fly ash to determine the strength of soil. The specific gravity of the marine soil is 2.27. The Atterberg limits of the soil sample was silty sand (SM). The maximum dry density was within the range as per unified soil classification and hence can be used as sub grade material. The optimum fly ash content was in the range of 5 to 10 % and hence the soil strength can be increased by adding 5 to 10 % of fly ash to the marine soil.

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Keywords

Soil stabilization, Fly ash, Marine soil, Laboratory tests and CBR.

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