Influence of Nanolime and Curing Period on Unconfined Compressive Strength of SoilReportar como inadecuado




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Applied and Environmental Soil Science - Volume 2017 2017, Article ID 8307493, 9 pages - https:-doi.org-10.1155-2017-8307493

Research Article

Department of Civil and Structural Engineering, Universiti Kebangsaan Malaysia UKM, 43600 Bangi, Selangor, Malaysia

Institute for Environment and Development LESTARI, Universiti Kebangsaan Malaysia UKM, 43600 Bangi, Selangor, Malaysia

Correspondence should be addressed to Panbarasi Govindasamy

Received 20 October 2016; Revised 21 February 2017; Accepted 6 March 2017; Published 3 April 2017

Academic Editor: Teodoro M. Miano

Copyright © 2017 Panbarasi Govindasamy et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents the improvement of the unconfined compressive strength UCS of soil by mixing different percentages of nanolime and 5% lime with soil. The UCS of treated soil increased significantly over curing time with increasing percentage of nanolime. The optimum results were reached at only 0.5% nanolime admixtures which were much higher than 5% lime admixture. This may be due to higher ability of nanolime to flocculate and agglomerate the soil particles compared with the lime. In addition, the lime could fill only the micropores while nanolime could fill the micro- and nanopores as well. The strength gain is inversely proportional to the remolded moisture content and curing period. However, when the content of nanolime used is larger than 0.5%, nanolime particles are not uniformly dispersed. Therefore, a weak area in the form of voids is created, consequently the homogeneous hydrated microstructure cannot be formed, and finally the strength will decrease.





Autor: Panbarasi Govindasamy, Mohd Raihan Taha, Jamal Alsharef, and Kowstubaa Ramalingam

Fuente: https://www.hindawi.com/



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