Beneficial Use of Dredged Materials in Geotechnical Engineering

Balkaya, Müge

doi:10.1007/978-3-319-95888-0_3

Cited by 13 publications

(7 citation statements)

References 60 publications

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“…DWTS presents a valuable and environmentally sound solution across various fields. Balkaya [15] indicates that in the area of soil enhancement, it emerges as a promising additive that can effectively improve soil quality. This extends to geotechnical applications, as indicated in the article published by Boscov et al [16] in which it stands out as a sustainable alternative to preserve natural soils.…”

Section: Introductionmentioning

confidence: 99%

Utilisation of Waste Sludge from Drinking Water Treatment as a Filler Material in Hot Mix Asphalt

Kahveci,

Özen

2024

Materials

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This research investigated the suitability of using sludge from the treatment of drinking water in hot mix asphalt (HMA) as a filler material. The storage and environmental impact of sludge is an enormous problem, especially for countries with large populations. Two different types of sludges, ferric chloride (FC) and aluminium sulphate (AS), were used as a filler material in HMA. The Hamburg Wheel Tracking (HWT) test, which correlates with rutting, and the Indirect Tensile Strength (ITS) test, which indicates the moisture sensitivity of HMA, were carried out at the optimum bitumen content of the mixes to investigate the usability of sludge in HMA. The test results indicate the usability of FC and AS in HMA compared to the reference mixes. However, the AS type of sludge has better rutting resistance than the FC type. Although the results support the usability of both sludges in HMA, it should be noted that the increased cost of the mix containing sludges due to the combustion process and the increased bitumen content during application should be considered.

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Section: Introductionmentioning

confidence: 99%

Utilisation of Waste Sludge from Drinking Water Treatment as a Filler Material in Hot Mix Asphalt

Kahveci,

Özen

2024

Materials

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“…The mixtures were produced using a compounding extruder (see diagram). Most authors present research results based on the recycling of polymer composites filled with glass fibers or the analysis of the properties of thermoplastic composites made from secondary raw materials [1,2,5,6,9,12,[17][18][19][20]. Evens et al (2019) analyzed the process of manufacturing and recycling composites based on polypropylene filled with 20% glass, carbon, and natural fibers (flax).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Selected Properties of Polymer Mixtures Derived from Virgin and Re-Granulated PP with Glass Fibers

Stachowiak,

Kwiatkowski,

Chmielarz

et al. 2024

Materials

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The problem of the growing amount of waste polymer materials currently affects virtually every area of the global economy. New actions taken by the E.U. and member states could lead to a reduction in the burden on the natural environment, as well as the reuse of thermoplastic waste. The aim of this study was to analyze the possibility of reusing post-industrial waste (recycled polypropylene—rPP) in order to produce mixtures with original polypropylene (PP) and glass fibers. The research undertaken is characterized by a high level of innovation and was carried out on an industrial scale from industrial waste. The primary goal of the analyses was to determine changes in the properties of the polymer mixtures depending on the amount of recycled polymers. For this purpose, four types of mixtures were prepared, characterized by different degrees of filling with recycled material obtained from big-bag packaging (the filling levels were 0 wt.%, 20 wt.%, 30 wt.%, and 70 wt.%). A detailed analysis of the physical properties of the obtained mixtures was carried out to determine changes in the densities depending on the amount of rPP material. In addition, changes in the MFIs (melt flow indexes), characterizing viscosity changes, were analyzed depending on the amount of secondary raw material used. An analysis of the mechanical properties was also carried out based on static tensile testing, the impact strength (the Charpy method), and the Rockwell hardness test (the M method). The analysis of the thermal changes was performed using the DSC method. The results showed that the composites made of virgin polypropylene (PP GF30) and those made from re-granulates and glass fibers (rPP GF30) are characterized by similar mechanical properties and significantly different processing properties, determined by MFI. This means that the addition of re-granulates significantly affects the processability of the obtained materials, while the addition of glass fibers maintains the basic mechanical properties.

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“…As the bridge which links dredging operations and extracted products management, the beneficial reuse of dredged sediment as construction material represents a concrete application of efficient waste management [63]. It allows for both a sustainable dredging disposal mechanism and the promotion of a waste-to-wealth approach [56,[64][65][66][67][68]. A number of studies have identified paths to valorize dredged material in the construction industry [59,69,70].…”

Section: Introductionmentioning

confidence: 99%

Characterizing Harbor Dredged Sediment for Sustainable Reuse as Construction Material

et al. 2023

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An unprecedented rate of construction has profoundly increased the risk of scarcity of natural resources and threatened ecosystem sustainability. To establish an effective sustainable development policy, it is imperative to promote the use of responsible production channels, including waste recycling. Reuse of harbor dredged sediment is commonly investigated as a valuable alternative to non-renewable natural resources needed for construction. Sediment characterization is decisive in the valorization process, aiming to identify potential recycling paths. Existing research efforts, however, have rarely investigated case studies in developing countries. Moreover, they have tended to focus on the technical aspects, ignoring economic feasibility, which carries important implications. This paper fills this gap first by meticulously selecting laboratory tests for characterization within the means available in developing countries and second by conducting a cost-benefit analysis. The port of Safi, Morocco, was chosen for the implementation of the adopted approach. Results showed that dredged sediment is a sand readily reusable as a construction aggregate. Several applications are possible, the most interesting one being concrete works, as a substitute for conventional sand. While treatment by washing and dehydrating proved necessary, cost-benefit analysis confirmed the profitability of recycling. Hence, beneficial reuse of dredged sediment as construction material is technically and economically feasible.

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Beneficial Use of Dredged Materials in Geotechnical Engineering

Cited by 13 publications

References 60 publications

Utilisation of Waste Sludge from Drinking Water Treatment as a Filler Material in Hot Mix Asphalt

Utilisation of Waste Sludge from Drinking Water Treatment as a Filler Material in Hot Mix Asphalt

Analysis of Selected Properties of Polymer Mixtures Derived from Virgin and Re-Granulated PP with Glass Fibers

Characterizing Harbor Dredged Sediment for Sustainable Reuse as Construction Material

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