Sustainable cement mixtures based on sediments as a filler

Abstract

For several years, research has been devoted to the issue of abiotic reuse of excavated bottom sediments from waterways, reservoirs, harbors and estuaries in the construction industry. Dredged sediment can be used for various purposes depending on its chemical composition and physical properties. In connection with the aforementioned sand crisis, it can be used as a substitute for filler in the preparation of concrete mixtures. The contribution is aimed at evaluating the strength characteristics of cement composites prepared with 20% replacement of aggregates of the fraction 0-4 mm with sediment from the water reservoirs Kľušov and Ružín (Slovakia). The results showed the potential of using sediments as a partial substitute for aggregates in cement compositions.