|
|||||
|
|
Dredged marine sediments used as novel supply of filling materials for road construction |
|
| Authors: | Dongxing Wang Nor Edine Abriak Rachid Zentar |
| Institution: | 1. Key Laboratory of Geotechnical and Structural Engineering Safety of Hubei Province, School of Civil Engineering, Wuhan University, Wuhan, China;2. State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining &3. Technology, Xuzhou, China;4. Ecole des Mines Douai, LGCgE MPE-GCE, Douai, Francedongxing-wang@whu.edu.cn;6. Ecole des Mines Douai, LGCgE MPE-GCE, Douai, France |
| Abstract: | The dredged marine sediments are classified as waste and how to deal with such kind of abandoned materials is a great challenge. The main objective of this experimental work is to provide a novel way to reuse dredged sediment as filling materials in road section. The laboratory dewatering test is performed to model the in situ evaporation and dewatering process of untreated and treated sediment with chemical binder. The impact of binder amount and time is discussed on the change of water content influenced by evaporation. To valorize dredged sediments as roadbed materials, a hydraulic binder is incorporated to investigate its effect on the bearing capacity and strength performance. The suitability of stabilized sediment is assessed based on the obtained mechanical results followed by a detailed discussion on the in situ test roads. |
| Keywords: | Dewatering dredged marine sediment roadbed material stabilization strength |