One-dimensional electrokinetic stabilization of dredged mud

Malekzadeh, Mona, and Sivakugan, Siva (2017) One-dimensional electrokinetic stabilization of dredged mud. Marine Georesources & Geotechnology, 35 (5). pp. 603-609.

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View at Publisher Website: http://dx.doi.org/10.1080/1064119X.2016....
 
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Abstract

Reuse of dredged marine sediments for land reclamation is a sustainable method for disposing the large quantities of dredged spoil, accumulating every year worldwide. However, due to their high water content and low permeability, dewatering and self-sedimentation of the material takes a long time to be completed. Therefore, different methods, such as prefabricated vertical drains and vacuum preloading, are used to improve the consolidation properties of the dredged mud at the port of Brisbane. Among these stabilization methods, vacuum preloading is determined as the most effective method to increase the consolidation of the dredged mud. However, clogging during vacuum consolidation is undesirable. Therefore, electrokinetic stabilization draws attention since it is an environmentally friendly and time efficient method to dewater and consolidate dredged mud significantly. The effectiveness of the electrokinetic stabilization depends on the properties of the soil and the electrode configurations. One-dimensional and two-dimensional electrode configurations are the most popular configurations. In this study, the effect of one-dimensional electrode configuration, which is installation of electrodes in arrays of anodes and cathodes on consolidation parameters of dredged mud, is investigated. Based on this study, the dredged mud sediments can be stabilized using one-dimensional electrokinetic stabilization which resulted in improving compression index and coefficient of volume compressibility and reduction of soil plasticity index.

Item ID: 49364
Item Type: Article (Refereed Research - C1)
Keywords: compressibility; consolidation; dredged mud; electrode configuration; one-dimensional electonkinetic; physiochemical changes
ISSN: 1521-0618
Date Deposited: 13 Jun 2017 05:57
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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