American Society of Civil Engineers


Valorization of Stabilized River Sediments in Self Compacting Materials


by Zhibo Duan, (Laboratoire de Mécanique de Lille, CNRS UMR 810, 7Boulevard Paul Langevin, F-59655, Villeneuve d’Ascq Cedex), Zoubeir Lafhaj, (Ecole Centrale de Lille, Cité Scientifique, F-59651, Villeneuve d’Ascq Cedex. E-mail: Zoubeir.lafhaj@ec-lille.fr), Imen Bel Hadj Ali, (Laboratoire de Mécanique de Lille, CNRS UMR 810, 7Boulevard Paul Langevin, F-59655, Villeneuve d’Ascq Cedex), and Sébastien Ducellier, (Laboratoire de Mécanique de Lille, CNRS UMR 810, 7Boulevard Paul Langevin, F-59655, Villeneuve d’Ascq Cedex)
Section: Geoenvironmental Engineering, pp. 1355-1364, (doi:  http://dx.doi.org/10.1061/41165(397)139)

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Document type: Conference Proceeding Paper
Part of: Geo-Frontiers 2011: Advances in Geotechnical Engineering
Abstract: This article presents a study of the valorization of polluted rivers sediments after treatment by stabilization. The paper is divided into three parts. The first part presents the process of treatment, which was selected to stabilize organic and inorganic pollutants present in sediments. The second part deals with the experimental campaign and methodology adopted in this study. The third part is devoted to the study and analysis of the main results of valorization of treated sediments included in the composition of a self-compacting material intended for backfill trenches. Several formulations with different ratio of sediments, sand, cement and lime were investigated. The keys parameters determined were the immediate bearing capacity ratio and the compressive strength at 28 days. 75% of treated sediments, 25% of sand, 2% of cement and 4% of lime constitutes the formulation, which was selected.


ASCE Subject Headings:
Sediment
Rivers and streams
Water pollution
Dredging