Influence of Nano-Silica on Unconfined Compressive Strength of Marine Clay with Curing Time
Joju M R1, S Chandrakaran2
1Joju M R, PG Student, Department of Civil Engineering, National Institute of Technology Calicut, Kerala India.
2S.Chandrakaran, Professor, Department of Civil Engineering, National Institute of Technology Calicut, Kerala India.
Manuscript received on 05 December 2018 | Revised Manuscript received on 19 December 2018 | Manuscript published on 30 December 2018 | PP: 28-30 | Volume-8 Issue-2C, December 2018 | Retrieval Number: 100.1/ijeat.ICID-2018_EE_402
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Abstract: This paper presents the influence of nano-silica on unconfined compressive strength of soft marine clay with curing time.Soft marine clay is highly problematic regarding to engineering projects due to high compressibility, low shear strength and low permeability. Marine clay used for the study was collected from Vyppin Island, Cochin. Nanoparticles are one of the recent materials that can be used in soil stabilization. Drastic growths have been taken in the field of nanotechnology, and much nanotechnology-based advancementhas been made in geotechnical engineering. Nano-silica possess higher surface area to volume, this enhances cation exchange capacity and reaction with particles of clay. Nano-silica contents varied from 0.5% to 1%. The unconfined compressive strength of treated soil increased with curing time. Curing time taken for the study of variation in UCS were 3, 7, 14, 28 days. Nano-silica gel increased the cohesion between particles there by improvement of unconfined compressive strength. Minute quantity is just sufficient for noticeable changes in properties of soil in the case of nano-silica particles. Nano-silica as recent chemical additive also showed a rapid development in engineering properties of marine clay. So the modifications by chemical additive in marine clay had shown better improvement in UCS of soil.
Keywords: Marine Clay, Nanotechnology, Nano-silica, Unconfined Compressive Strength.
Scope of the Article: Civil and Environmental Engineering