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Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad , Novi Sad , Serbia
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Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad , Novi Sad , Serbia
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Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad , Novi Sad , Serbia
Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad , Novi Sad , Serbia
Deposited river sediment represents a mixture of fine clay, silt, and sand particles that accumulate at the bottom of aquatic ecosystems due to erosion of riverbanks and soil within the river basin, decomposition of plant and animal matter, as well as the accumulation of industrial and municipal waste. This process leads to large amounts of sediment forming in canals, rivers, and lakes, which can reduce water flow, decrease water quality, and disrupt waterway traffic. Disposal sites formed after regular dredging operations occupy significant land areas, making the management of this material a challenge both globally and in the region of Vojvodina. One potential reuse of this material lies in its stabilization and application as a construction material in road construction. This study analyzes a sample of dredged river sediment from the Begej River near Zrenjanin, categorizing it according to domestic standards. The application of this material is planned alone and in combination with lime binder ViaCalco F90 at a proportion of 5 and 7% relative to the dry sample mass. Afterwards, physical and mechanical tests were conducted, including the determination of maximum dry density (MDD) at optimal moisture content (Proctor test), unconfined compressive strength (UCS) test after 7 days of curing and CBR index test of the stabilized and non-stabilized samples. The results were compared with the relevant technical requirements and standards to draw a final conclusion regarding its suitability for use in pavement construction.
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