AN Experimental Research on the Effect of Biopolymers and Nano Materials on Cohesive Soil
Veena Vijayan L1, J Prakash Arul Jose2, Arya Vijayan.3

1Veena Vijayan L*, Research scholar, Department of Civil Engineering, Noorul Islam Centre for higher studies Tamil Nadu, India
2J Prakash Arul Jose, Professor and Head / Civil Engineering, Noorul Islam Centre for Higher Education Tamil Nadu, India
3Arya Vijayan. M. Tech Student , St. Thomas Institute for Science and technology ,TVM, Kerala
Manuscript received on September 23, 2019. | Revised Manuscript received on October 15, 2019. | Manuscript published on October 30, 2019. | PP: 7328-7333 | Volume-9 Issue-1, October 2019 | Retrieval Number: A2234109119/2019©BEIESP | DOI: 10.35940/ijeat.A2234.109119
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Abstract: Cohesive soils are extensively distributed worldwide and are a source of great damage to infrastructure and buildings. In order to minimize the undesirable properties and make them suitable for construction purposes, many new approaches are now being developed to improve the strength of cohesive soils. In addition to traditional methods, availability of new materials have promoted the field of soil improvement. Addition of biopolymers and nano materials are the recently developed innovative ideas in the field of soil stabilisation. Microbial induced polymers or biopolymers are introduced in soil stabilisation with the aim of less environmental pollution. Nano technology in geotechnical engineering can be seen in two ways such as, the structure of the soil is seen at nano scale and the manipulation of soil is done at atomic and molecular scale. This study deals with the feasibility of stabilising cohesive soil with biopolymers and nano materials and to analyse the change in geotechnical properties. Guar gum powder and nano magnesium powder is added to soil at varying percentage (0.25%, 0.5%, 0.75% and 1%) and tests were carried out to determine the optimum percentage and strength characteristics of additives.
Keywords: Ground improvement, Nano magnesium, Guar gum, Kaolinite clay, UCC, CBR.