A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Valorization of uncontaminated dredged marine sediment through sand substitution in marine grade concrete
Marine sediment disposal is an important economic and environmental issue worldwide. In order to minimize these discharges and optimize resources through a circular economy approach, this study discusses the potential use of fine marine sediments without treatments as a sand substitute in the marine concrete class (XS2, C30/37). The Dreux-Gorisse method was applied to find the concrete formulation containing 10, 20, 30, 40 and 50% sediment by weight. The results show that an XS2 concrete C30/37 with a water to binder ratio of 0.55 could be designed with 10% of sediment replacement content without significantly affecting the concrete properties. However, the optimization of concrete mix design shows that marine concrete (XS2, C30/37) could be designed with 30% of sediment replacement content without significantly affecting the potential durability and the estimated lifetime of the concrete structure.
Untreated fine sediments can be used as a substitute for sand in XS2 concrete
Untreated fine marine sediments have a negative effect on concrete properties
Up to 10% of sediment content resulted in comparable concrete properties
Up to 30% of sediment content can be used after optimizing the concrete mix design
Valorization of uncontaminated dredged marine sediment through sand substitution in marine grade concrete
Marine sediment disposal is an important economic and environmental issue worldwide. In order to minimize these discharges and optimize resources through a circular economy approach, this study discusses the potential use of fine marine sediments without treatments as a sand substitute in the marine concrete class (XS2, C30/37). The Dreux-Gorisse method was applied to find the concrete formulation containing 10, 20, 30, 40 and 50% sediment by weight. The results show that an XS2 concrete C30/37 with a water to binder ratio of 0.55 could be designed with 10% of sediment replacement content without significantly affecting the concrete properties. However, the optimization of concrete mix design shows that marine concrete (XS2, C30/37) could be designed with 30% of sediment replacement content without significantly affecting the potential durability and the estimated lifetime of the concrete structure.
Untreated fine sediments can be used as a substitute for sand in XS2 concrete
Untreated fine marine sediments have a negative effect on concrete properties
Up to 10% of sediment content resulted in comparable concrete properties
Up to 30% of sediment content can be used after optimizing the concrete mix design
Valorization of uncontaminated dredged marine sediment through sand substitution in marine grade concrete
Hayek, Mahmoud (author) / Soleimani, Tara (author) / Salgues, Marie (author) / Souche, Jean-Claude (author) / Garcia-Diaz, Eric (author)
European Journal of Environmental and Civil Engineering ; 27 ; 4008-4025
2023-10-03
18 pages
Article (Journal)
Electronic Resource
Unknown
Dredged marine sand as construction material
| Taylor & Francis Verlag | 2012
Mechanical and durability properties of concrete made with dredged marine sand
| Online Contents | 2011
Mechanical and durability properties of concrete made with dredged marine sand
| British Library Online Contents | 2011