Author : Remitha Ann Cherian 1
Date of Publication :8th May 2017
Abstract: The construction of engineering structures on fine grained soil is a challenging task and therefore considered as one of the biggest concern in geotechnical engineering. As the methods used conventionally were very uneconomical and time consuming, there is an urgent need for development of new techniques to satisfy the performance and economical criteria, which enhances the geotechnical properties of soil. It is necessary to adopt safer, economically feasible, environmentally sound and cost effective materials to improve geotechnical properties of Kuttanad clay, by utilizing stabilizers such as Metakaolin (Traditional stabilizer), Terrazyme (Non-traditional stabilizer) and Crumb Rubber Powder (By-product stabilizer). From the experimental investigation it is found that 6% of Metakaolin, 200ml/2m3 of Terrazyme and 10% of Crumb Rubber Powder are the optimum values for improving the geotechnical properties of Kuttanad clay after 14 days of curing period. In the present study an attempt is made to investigate the combined effect of optimum values of these three stabilizers on plasticity, shear strength and consolidation characteristics of Kuttanad clay by conducting Atterberg Limits test , Triaxial Compression test and One Dimensional Consolidation test respectively. The test results indicated that Kuttanad clay treated with a combination of 6% of Metakaolin, 200ml/2m3 of Terrazyme and 10% of Crumb Rubber Powder showed improvement in shear strength behaviour, reduced plasticity and consolidation characteristics after 14 days of curing period when compared to untreated Kuttanad clay
Reference :
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- Remitha Ann Cherian and Shyla Joseph A, “ A Comparative study on the Influence of Traditional, Non-traditional and By-product stabilizers on Geotechnical properties of Kuttanad clay”, International Research Journal of Engineering and Technology, Volume 04, Issue 03, pp.2521-2536, March 2017.
- Leong Sing Wong, Roslan Hashim & Faisal Ali, “Improved Strength and Reduced Permeability of Stabilized Peat: Focus on Application of Kaolin as a Pozzolanic Additive”, Construction and Building Materials, Volume 40, pp. 783–792, Science Direct, Elsevier Ltd, December 2013.
- Zhang Tongwei, Yue Xibing, Deng Yongfeng, Zhang Dingwen & Liu Songyu, “Mechanical Behaviour and Micro-structure of CementStabilised Marine Clay with a Metakaolin Agent”, Construction and Building Materials, Volume 73, pp. 51-57, Science Direct, Elsevier Ltd, December 2014.
- C. Venkatasubramanian & G. Dhinakaran, “Effect of Bio Enzymatic Soil Stabilization on Unconfined Compressive Strength and California Bearing Ratio”, Journal of Engineering and Applied Sciences, Volume 6, Issue 5, pp. 295- 298, 2011.
- Joydeep Sen & Jitendra Prasad Singh, “Stabilization of Black Cotton Soil using Bio Enzyme for a Highway Material”, International Journal of Innovative Research in Science, Engineering and Technology, Volume 4, Issue 12, December 2015.