Feasibility of the reuse of total and processed contaminated marine sediments as fine aggregates in cemented mortars

Abstract : In a context promoting waste sustainable management, dredged sediments are assessed for valorization as substitute for sand in non-structural cemented mortars. Full substitution of sand by total sediment revealed low mechanical performances at UCS testing, linked to a high porosity. However, mechanical strength was improved, and porosity reduced, by using 80µm-sized sediment. Thus, porosity is correlated to the presence of a fine fraction and its constitution, which brought a higher water demand during formulation. This research confirmed that the reuse of the coarser fraction of a marine sediment offered an interesting valorization potential as cemented mortars for non-structural applications.
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Submitted on : Wednesday, April 27, 2016 - 11:27:09 AM
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Julien Couvidat, Mostafa Benzaazoua, Vincent Chatain, Ahmed Bouamrane, Hassan Bouzahzah. Feasibility of the reuse of total and processed contaminated marine sediments as fine aggregates in cemented mortars. Construction and Building Materials, Elsevier, 2016, ⟨10.1016/j.conbuildmat.2016.02.186⟩. ⟨hal-01308108⟩

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