Aging Effects in Field-Compacted Dredged Material

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dc.contributor.author Wazne, Mahmoud
dc.contributor.author Grubb, Dennis
dc.contributor.author Jagupilla, Santhi
dc.contributor.author Malasavage, Nicholas
dc.contributor.author Bradfield, William
dc.date.accessioned 2016-02-29T12:29:21Z
dc.date.available 2016-02-29T12:29:21Z
dc.date.copyright 2013
dc.date.issued 2016-02-29
dc.identifier.issn 2153-5493 en_US
dc.identifier.uri http://hdl.handle.net/10725/3208
dc.description.abstract This paper contains the results of aging study performed on 365-day-old trial highway embankments constructed of field-compacted dredged material (DM), steel slag fines (SSF), and three DM-SSF blends. Key findings include that moisture content of the internal core at 365 days was essentially unchanged from the as-built conditions, and the bulk (major oxide) chemistry of the DM-SSF blends matched what was predicted by the field blending ratios. The addition of SSF to the 100% DM resulted in significant pH buffering and in strength increases up to a factor of 2, as measured by the average cone penetrometer test (CPT) tip resistance. Refusal ( or [Math Processing Error]) was encountered in the 100% SSF embankment at a depth of approximately 1.5 m. The 365-day aged 100% DM and [Math Processing Error] DM-SSF blend had effective friction angles on the order of 34 and 52°, respectively, where the dry DM content is reported first. Quantitative X-ray diffraction analyses indicated that no new crystalline phases were observed in the DM-SSF blends, such as those commonly associated with typical cementation reactions. For 365-day-old DM-SSF blends containing between approximately [Math Processing Error] (100% SSF) and [Math Processing Error] (100% DM) total arsenic, the 95% upper confidence limit on the average. As concentration from the combined toxicity characteristic leaching procedure/synthetic precipitation leaching procedure (TCLP/SPLP) leaching results was less than the SPLP detection limit ([Math Processing Error]), suggesting that the environmental risk associated with beneficially using the DM-SSF blends may be negligible. en_US
dc.language.iso en en_US
dc.title Aging Effects in Field-Compacted Dredged Material en_US
dc.type Article en_US
dc.description.version Published en_US
dc.title.subtitle Steel Slag Fines Blends en_US
dc.author.school SOE en_US
dc.author.idnumber 201205627 en_US
dc.author.woa N/A en_US
dc.author.department Civil Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal Journal of Hazardous, Toxic, and Radioactive Waste en_US
dc.journal.volume 17 en_US
dc.journal.issue 2 en_US
dc.article.pages 107-119 en_US
dc.keywords Arsenic en_US
dc.keywords Dredged spoil en_US
dc.keywords Slag en_US
dc.keywords Recycling en_US
dc.keywords Aging en_US
dc.identifier.doi http://dx.doi.org/10.1061/(ASCE)HZ.2153-5515.0000154 en_US
dc.identifier.ctation Grubb, D. G., Wazne, M., Jagupilla, S., Malasavage, N. E., & Bradfield, W. B. (2013). Aging effects in field-compacted dredged material: steel slag fines blends. Journal of Hazardous, Toxic, and Radioactive Waste, 17(2), 107-119. en_US
dc.author.email mahmoud.wazne@lau.edu.lb

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