Role of Sodium Silicate Additive in Cement-Treated Kuttanad Soil
Publication: Journal of Materials in Civil Engineering
Volume 28, Issue 6
Abstract
This study aims at understanding various parameters that influence the performance of the sodium silicate (SS) additive along with cement in treating the soft Kuttanad soil. The change in soil structure in the presence of SS additive during cement treatment has been correlated with the engineering properties of cement-treated Kuttanad soil. The unconfined compressive strength (UCS) of samples was measured to study the additive dosage effect and to evaluate the impact of the clay water to cement (W/C) ratio on the additive performance. Microstructural and mineralogical investigations were carried out using X-ray diffraction (XRD) studies, scanning electron microscopy (SEM), pH, and zeta potential measurements. The results show that the presence of SS additive notably impacts the strength behavior of Kuttanad soil treated with cement by more than one mechanism. SS additive accelerates and augments the formation of calcium silicate hydrate (CSH). Further, it is found to induce changes in fabric and pore water chemistry that favor enhanced cementation imparting substantial strength to the cemented soil matrix.
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References
ASTM. (1996). “Standard test method for unconfined compressive strength of compacted soil-lime mixtures.”, West Conshohocken, PA.
ASTM. (2000). “Standard test method for unconfined compressive strength of cohesive soil.”, West Conshohocken, PA.
Ayyar, T. S. R. (1966). “Strength characteristics of Kuttanad clays.” Ph.D. thesis, Univ. of Roorkee, Roorkee, India.
Bindu, J., and Ramabhadran, A. (2011). “Study on cement stabilized Kuttanad clay.” Proc., Indian Geotechnical Conf., Indian Geotechnical Society (IGS), Kochi, India, 465–468.
Brykov, A. S., Danilov, V. V., Korneev, V. I., and Larichkov, A. V. (2002). “Effect of hydrated sodium silicates on cement paste hardening.” Russ. J. Appl. Chem., 75(10), 1577–1579.
Eades, J. L., and Grim, R. E. (1966). “A quick test to determine lime requirements for lime stabilization.” Highway Res. Rec., 139, 61–72.
Goldberg, S., and Glaubig, R. A. (1987). “Effect of saturating cation, pH, and aluminum and iron oxide on the flocculation of kaolinite and montmorillonite.” Clays Clay Miner., 35(3), 220–227.
Huat, B. B. K., Kazemian, S., and Kuang, W. L. (2011). “Effect of cement-sodium silicate grout and kaolinite on undrained shear strength of reinforced peat.” Electron. J. Geotech. Eng., 16, 1221–1228.
Ingles, O. G., and Metcalf, J. B. (1973). Soil stabilization: Principles and practice, Wiley, New York.
Jawed, I., and Skalny, J. (1978). “Alkalies in cement: A review: II. Effects of alkalies on hydration and performance of portland cement.” Cem. Concr. Res., 8(1), 37–51.
JCPDS (Joint Committee on Powder Diffraction Standards). (1999). “Index to the powder diffraction file.” International Centre for Diffraction Data, Newtown Square, PA.
Kaya, A., and Yukselen, Y. (2005). “Zeta potential of clay minerals and quartz contaminated by heavy metals.” Can. Geotech. J., 42(5), 1280–1289.
Kazemian, S., Prasad, A., Huat, B. B. K., Bolouri Bazaz, J., Mohammed, T. A., and Abdul Aziz, F. N. (2011). “Effect of aggressive pH media on peat treated by cement and sodium silicate grout.” J. Cent. South Univ. Technol., 18(3), 840–847.
Palomino, A. M., and Santamarina, J. C. (2005). “Fabric map for kaolinite: Effects of pH and ionic concentration on behavior.” Clays Clay Miner., 53(3), 211–223.
Porbaha, A., Tanaka, H., and Kobayashi, M. (1998). “State of the art in deep mixing technology: Part II. Applications.” Proc. ICE-Ground Improv., 2(3), 125–139.
Rafalko, S. D., Filz, G. M., Brandon, T. L., and Mitchell, J. K. (2007). “Rapid chemical stabilization of soft clay soils.” Transportation Research Record, 2026, 39–46.
Ramesh, H. N., Mohan, M. S., and Sivapullaiah, P. V. (1999). “Improvement of strength of fly ash with lime and sodium salts.” Proc. ICE-Ground Improv., 3(4), 163–167.
Stutzman, P. E. (2000). “Scanning electron microscopy in concrete petrography.” Proc., Workshop on the Role of Calcium Hydroxide in Concrete, National Institute of Standards and Technology, Gaithersburg, MD, 59–72.
Suganya, K., and Sivapullaiah, P. V. (2013). “Mechanisms of binder interactions and their role in strengthening Kuttanad clay.” Proc., 18th Int. Conf. on Soil Mechanics and Geotechnical Engineering, Vol. 1, International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE), Paris, 429–432.
Suganya, K., and Sivapullaiah, P. V. (2015). “Effect of changing water content on the properties of Kuttanad soil.” Geotech. Geol. Eng., 33(4), 913–921.
Xu, H., and van Deventer, J. S. (2003). “The effect of alkali metals on the formation of geopolymeric gels from alkali-feldspars.” Colloids Surf., A, 216(1), 27–44.
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Published In
Journal of Materials in Civil Engineering
Volume 28 • Issue 6 • June 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jul 22, 2015
Accepted: Nov 16, 2015
Published online: Jan 14, 2016
Published in print: Jun 1, 2016
Discussion open until: Jun 14, 2016
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