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Thermal characterization of lime stabilized soils

Nur, Hadi and Eisazadeh, A. and Kassim, K. A. (2010) Thermal characterization of lime stabilized soils. In: 19th World Congress of Soil Science, Soil Solutions for a Changing World, 1-6 August 2010, Brisbane, Australia.

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Official URL: http://www.iuss.org/19th%20WCSS/Symposium/pdf/0480...

Abstract

In this paper, the time-dependent changes induced in the thermal properties of lime treated bentonite comprised mainly of montmorillonite mineral and a tropical lateritic soil rich in iron oxide were investigated. The thermal gravimetric analysis (TGA) indicated that evaporation of the adsorbed surface water was the main reason responsible for the weight losses observed in the lower temperature regions. Nevertheless, in 8 months cured bentontie samples, a new drop at around 285ºC due to the evaporation of moisture encapsulated into the reaction products was evident. Also, it was found that in laterite clay mix designs, lime treatment had a marginal impact on the thermal properties of the soil. From geotechnical point of view, the stabilization technique was far more effective in improving the strength properties of bentonite soil over the 8 months curing period.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:bentonite, lateritic soil, lime stabilization, thermal properties
Subjects:Q Science
Divisions:Science
ID Code:24374
Deposited By: Liza Porijo
Deposited On:18 Sep 2012 05:28
Last Modified:18 Sep 2012 05:28

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