title: The use of fluvial and marine sediments in the formulation of roller compacted concrete for use in pavements.
abstract: In the manufacture of Roller Compacted Concrete (RCC) used for pavement materials, various types of aggregates are used, such as crushed and rolled limestone or siliceous aggregates. The main objective is always to reach the maximum compactness to achieve higher mechanical performances. In the present work, fluvial and marine sediments, resulting from the dredging of harbours and rivers, were introduced as aggregates in the preparation of RCC for pavement construction, with a view to improving the mechanical strength of the RCC. This study included a granulometric, mineralogical and chemical characterization of the aggregates. The work also contains a mechanical characterization of the resulting material. The objective of the study was to find a resistant RCC, by developing materials such as sediments that are often classified as a waste and where their storage is harmful to the environment. The mechanical strengths obtained showed the profitability of using a Roller Compacted Concrete containing sediments.
authors.affiliation: Civil Engineering Laboratory, National Engineering School of Tunis, BP 37, Tunis-Belvedere, 1002, Tunisia. zdiri_ms@yahoo.fr
authors.forename: M
authors.initials: M
authors.lastname: Zdiri
authors.forename: N E
authors.initials: NE
authors.lastname: Abriakb
authors.forename: M
authors.initials: M
authors.lastname: Ben Ouezdoua
authors.forename: J
authors.initials: J
authors.lastname: Neji
mesh_terms: D019245:Compressive Strength; D003252:Construction Materials / Q000032:analysis*; D019015:Geologic Sediments / Q000737:chemistry* / Q000145:classification; D008422:Materials Testing; D009792:Oceans and Seas; D013718:Tensile Strength