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May 16, 2012
Dewatering Fly Ash Slurries Using Geotextile Containers
Authors: M. E. Kutay and A. H. AydilekAuthor Affiliations
Publication: Geosynthetics Research and Development in Progress
Abstract
The design of geotextile containers for dewatering applications typically requires good retention of the confined fill material solids. This becomes difficult to achieve when the fill material is fine grained and the pore openings are large. Furthermore, the proper retention becomes critical if the confined material is contaminated. Fly ash is one of the fine-grained geomaterials that exhibit behavior that is different from regular soils because of differences in its particle structure and chemical composition. A laboratory testing program was conducted to evaluate the retention performance of geotextiles with fly ash slurries. The results indicated that fly ash could be successfully retained by a variety of woven geotextiles and nonwoven/woven combinations. Results also showed that use of a double-layer geotextile system, rather than a single woven geotextile, significantly increases the retention capacity.
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© 2005 American Society of Civil Engineering.
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Published online: May 16, 2012
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M. E. Kutay
University of Maryland, 1163 Glenn Martin Hall, College Park, Maryland, 20742
A. H. Aydilek
University of Maryland, 1163 Glenn Martin Hall, College Park, Maryland, 20742
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