Based on its characteristics, this material could be reused in concrete formulation. Sediment from Gabes harbor is the second investigated sample. The experimental results showed the feasibility of Zarzis sediment with 3% lime addition in road applications in base-course material. The mechanical tests of various formulations conducted on different mixtures are compaction and compression. Sediment extracted from the first study area, Zarzis commercial harbor, was reused as a new material for road construction. The second part, deals with two different applications of marine sediment dredged from two Tunisian harbors. Possible sediment reuse in civil engineering applications are classified according to material proprieties. The choice of alternative reuse is based on geotechnical, mechanical, chemical, mineralogical and environmental characterization of marine sediment. In the first part, a literature review of sediment reuse is presented. This works is divided into two main sections. Physical, mechanical, chemical, mineralogical and environmental properties of dredged marine sediments define the possible civil engineering applications according to standards. Thus, laboratory identification is an essential step in sediment management. Sediment characteristics are the primary decision maker in choosing the adequate valorization way. Indeed, various reuse ways have been studied such as road construction, clays bricks, cementitious materials and paving blocks. Nowadays, dredged sediment reuse in civil engineering applications become more and more a beneficial tool for waste material management. After dredging, marine sediment are either discharged at sea or disposed in lands. Huge amounts of dredged marine sediments are generated periodically in order to maintain waterways and ensure ships navigation.
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