Beneficial use of dredged materials in Great Lakes commercial ports for transportation projects.
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2014-05-01
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Abstract:This report describes an effort to facilitate beneficial use of dredged materials (DM) from Great Lakes ports and harbors as an alternative construction ; material in transportation-related earthwork applications. The overall objective is to link together the following components: 1) identify applications ; for use of DM in transportation-related projects, 2) summarize required geotechnical properties in specific transportation applications, 3) identify ; available geotechnical test methods to determine those properties, 4) identify specific values of required geotechnical material properties for specific ; uses, and 5) identify locations within the Great Lakes region where dredged materials meeting these specifications may be sourced. This report pulls ; together available information on potential applications for the use of DM in transportation earthwork projects, the required geotechnical properties of ; materials according to federal and state construction specifications, and the geotechnical laboratory and field test methods available to determine ; these properties. Representative geotechnical properties of DM from select Great Lakes locations are synthesized from available literature and the ; results of laboratory tests conducted on DM sampled from the Milwaukee confined disposal facility (CDF). Results are evaluated within the ; framework developed above to assess the suitability of unamended DM from each location for beneficial use in transportation construction. Based on ; the information obtained, material potentially sourced from these locations has limited direct use in its raw or unamended form. Review of general ; sediment types in harbors throughout the region, however, indicates that there may be large potential for beneficial use of DM because the sediment ; type from numerous harbors in the region is predominantly coarse-grained. Fine-grained materials are also a potential source of material if amended or ; stabilized with other materials (e.g., fly ash). Future effort should focus on laboratory evaluation of stabilized fine-grained DM, detailed field ; characterization of the physical properties at DM sources throughout the region, and dissemination and outreach to promote the concept of beneficial ; use of dredged materials in transportation construction.
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Main Document Checksum:urn:sha256:2f12ce645f53205d8a29acfa0668220b7212051360ecdc08c4da3da2419c6bae