Select geotechnical properties of a lime stabilized expansive soil amended with bagasse ash and coconut shell powder
| Autor: | P. Kasinatha Pandian, Jijo James |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
bagasse ash
Bagasse ash Expansive clay 0211 other engineering and technologies Shell (structure) 02 engineering and technology engineering.material Engineering (General). Civil engineering (General) lime stabilization swell-shrink plasticity 021105 building & construction engineering Environmental science ucs Geotechnical engineering TA1-2040 coconut shell powder 021101 geological & geomatics engineering Lime |
| Zdroj: | Selected Scientific Papers: Journal of Civil Engineering, Vol 13, Iss s1, Pp 45-60 (2018) |
| ISSN: | 1338-7278 |
| DOI: | 10.1515/sspjce-2018-0005 |
| Popis: | Lime stabilization has been and still is one of the most preferred methods for stabilization of expansive soils. However, in the recent times, utilization of solid waste materials in soil stabilization has gained prominence as an effective means to manage wastes generated from various sources. In this work, an attempt has been made to utilize waste materials from two sources as auxiliary additives to lime in the stabilization of an expansive soil. Bagasse ash (BA), a waste by-product from the sugar industry and Coconut shell powder (CSP), a processed waste obtained from left over coconut shells of oil extraction industry were used as auxiliary additives. An expansive soil obtained from a local field was subjected to chemical, mineral, microstructural and geotechnical characterization in the laboratory and stabilized using 3% lime. The waste materials were subjected to chemical, mineral and microstructural characterization. The stabilization process was amended with four different contents viz. 0.25%, 0.5%, 1% and 2% of BA and CSP separately and the effect of the amendment was studied on the unconfined compressive strength (UCS), plasticity, swell-shrink and microstructural characteristics of the expansive soil. The results of the study indicated that BA amendment of lime stabilization performed better than CSP in improving the UCS, plasticity, swell-shrink and microstructure of the lime stabilized expansive soil. |
| Databáze: | OpenAIRE |
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