Freeze-thaw Resistance of an Alluvial Soil Stabilized with EcoSand and Asbestos-free Fiber Powder

Ashwin, K.R.N. and Arun, M. and Sasikumar, S. and Krishnaraj, T. and Mithuna, R. and Gobinath, R and Akinwumi, I. I. (2017) Freeze-thaw Resistance of an Alluvial Soil Stabilized with EcoSand and Asbestos-free Fiber Powder. International Journal of Geomatics and Geosciences, 7 (4). pp. 352-357. ISSN 0976 – 4380

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Abstract

Stabilization of poor soils subjected to large daily temperature variations requires careful selection of suitable stabilizer for improvement of such soils. This study investigated the freeze-thaw resistance of an alluvial soil stabilized with EcoSand and asbestos-free fiber powder (AFP). Physical and mechanical properties of the soil were determined. The soil sample was stabilized with 5 variants of equal mixtures of the EcoSand and AFP in proportions of 2, 4, 6, 8 and 10%, with 1% sodium silicate and 1% fly ash, by weight of the soil. UCS tests were conducted before and after three freeze-thaw cycles, while keeping the sample at 0ºC for 8 hours and later at 30ºC for 8 hours for each cycle. It was found that the 8% EcoSand + AFP with 1% sodium silicate and 1% fly ash content provided an optimized increase of the freeze-thaw resistance of the soil. The use of a mixture of EcoSand and AFP as a soil stabilizer for regions of the world experiencing large temperature variation has the potential to improve the resistance of sand to freezing and thawing.

Item Type:	Article
Uncontrolled Keywords:	Freeze-thaw test, soil stabilization, soil improvement, waste management
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User:	Mrs Hannah Akinwumi
Date Deposited:	22 Jun 2017 16:33
Last Modified:	23 Jun 2017 02:58
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/8452

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