Sharma, Anil Kumar and Sivapullaiah, PV (2017) Swelling behaviour of expansive soil treated with fly ash–GGBS based binder. In: Geomechanics and Geoengineering, 12 (3). pp. 191-200. ISSN 1748-6025
Full text not available from this repository.Abstract
In this article, the potential of a binder developed by admixing fly ash and ground granulated blast furnace slag (GGBS) to stabilise expansive soils is evaluated. Laboratory tests included determination of free swell index, swell potential and swelling pressure tests of the soil/binder mixtures at different mixing ratio. The test results showed decrease in the swelling behaviour of the soil with increase in binder content. The percent swell–time relationship was observed to fit the hyperbolic curves enabling us to predict the ultimate percent swell from few initial test results. Addition of 1% of lime to the binder showed further improvement in reducing swelling. A good linear relationship is established between percent oedometer swell and modified free swell index (MFSI) for soil/binder mixtures without lime but the same has not been observed in the presence of lime. The compressibility characteristics of the soil/binder mixtures reduced nominally with increase in binder content but in the presence of lime, the compressibility reduced significantly. Binder used in this study has been found to be effective and economic to stabilise expansive soils with lesser amount of chemical additives such as lime.
| Item Type: | Journal Article |
|---|---|
| Publication: | Geomechanics and Geoengineering |
| Publisher: | Taylor and Francis Ltd. |
| Additional Information: | The copyright for this article belongs to the Taylor and Francis Ltd. |
| Keywords: | compressibility; Expansive soil; fly ash; GGBS; soil stabilisation; swelling |
| Department/Centre: | Division of Mechanical Sciences > Civil Engineering |
| Date Deposited: | 02 Jun 2022 06:00 |
| Last Modified: | 02 Jun 2022 06:00 |
| URI: | https://eprints.iisc.ac.in/id/eprint/73036 |
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