Study of greenhouse gas emissions during ripening of dredged marine sediment

As increasing greenhouse gas (GHG) emissions contribute to global warming, it is becoming more important to consider the carbon footprint of hydraulic engineering projects. This carbon footprint is more complex than previously thought however, as it can also include the carbon dynamics of the sediments from which projects are built. The purpose of this study was to provide a first approximation from sediment-related GHG emissions of dredged sediments. Using the case study of the clay ripening pilot project (‘Kleirijperij’) in Groningen, the Netherlands, one phase of sediment processing was examined: the ripening of dredged sediments for use as a clay material in dyke construction.

Experimental study on the adhesion factor of clay

A major mechanical property of clay is the adhesion factor that reflects the ratio between its cohesive and adhesive strength under different water content.

Soft clays
Soft Clays

Soft clays or soft silts in the reclamation area will become soft slurry, and slurry can result in significant bulking followed by consolidation.