Geotechnical characterisation of neutralised red mud for use in civil engineering construction and manufacturing

Quintero Olaya, Sebastian, Williams, David J., del Pilar Durante Ingunza, Maria and Serati, Mehdi (2017). Geotechnical characterisation of neutralised red mud for use in civil engineering construction and manufacturing. In: Proceedings of the 32nd International Conference on Solid Waste Technology and Management. The 32nd International Conference on Solid Waste Technology and Management, Philadelphia, PA, USA, (613-623). 19-22 March 2017.

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Author Quintero Olaya, Sebastian
Williams, David J.
del Pilar Durante Ingunza, Maria
Serati, Mehdi
Title of paper Geotechnical characterisation of neutralised red mud for use in civil engineering construction and manufacturing
Conference name The 32nd International Conference on Solid Waste Technology and Management
Conference location Philadelphia, PA, USA
Conference dates 19-22 March 2017
Convener Ronald L. Mersky
Proceedings title Proceedings of the 32nd International Conference on Solid Waste Technology and Management
Place of Publication Chester, PA United States
Publisher The Journal of Solid Waste Technology and Management
Publication Year 2017
Sub-type Fully published paper
Open Access Status Not yet assessed
ISSN 1091-8043
Start page 613
End page 623
Total pages 11
Collection year 2018
Language eng
Abstract/Summary Red mud is a toxic by-product from the hot, caustic refining of bauxite to produce alumina, and is produced in the form of an aqueous slurry. It is typically thickened, and transported to a surface storage facility. The volume of red mud generated worldwide is increasing dramatically, leading to a massive amount of red mud to be stored annually. In order to alleviate the ongoing demand for the storage of red mud, means by which it may be used in civil engineering construction and manufacturing are being investigated. Its suitability for use demands that it's geotechnical and geochemical behaviour and parameters be better understood. The geotechnical characterisation of the red mud sample involved the determination of its as­supplied moisture content, specific gravity, particle size distribution, and Atterberg limits. The geochemical characterisation of the red mud sample involved the determination of its paste electrical conductivity, pH, chemistry and mineralogy, which also influence its mechanical behaviour and responses to external loading. The critical geotechnical parameters of red mud, such as compaction, shear strength, compressibility and permeability, also need to be determined, as a function of its moisture state. This paper describes the results of a series of geotechnical and geochemical characterisation and geotechnical parameter testing of a red mud sample to determine its applicability and potential uses in civil engineering construction and manufacturing applications.
Keyword geochemical characterisation
geotechnical characterisation
geotechnical parameters
red mud
re-use
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
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Created: Thu, 13 Apr 2017, 10:45:10 EST by Mehdi Serati on behalf of School of Civil Engineering