Beneficial reuse of Brest-Harbor (France)-dredged sediment as alternative material in road building : laboratory investigations

The scarcity of natural aggregates promotes waste reuse as secondary raw material in the field of civil engineering. This article focuses on the beneficial reuse of marine-dredged sediments in road building. Thus, mixtures of raw sediments and dredged sand collected from Brest Harbur (Bretagne, Fran...

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Veröffentlicht in:Environmental technology. - 1993. - 39(2018), 5 vom: 01. März, Seite 566-580
1. Verfasser: Maherzi, Walid (VerfasserIn)
Weitere Verfasser: Benzerzour, Mahfoud, Mamindy-Pajany, Yannick, van Veen, Eleanor, Boutouil, Mohamed, Abriak, Nor Edine
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Marine sediment beneficial reuse road materials sustainability waste management Calcium Compounds Ferric Compounds Minerals Oxides mehr... ettringite Silicon Dioxide 7631-86-9 lime C7X2M0VVNH
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520 |a The scarcity of natural aggregates promotes waste reuse as secondary raw material in the field of civil engineering. This article focuses on the beneficial reuse of marine-dredged sediments in road building. Thus, mixtures of raw sediments and dredged sand collected from Brest Harbur (Bretagne, France) were treated with road hydraulic binders. Formulation were prepared and characterized as recommended by the French Technical Guidelines for soil treatment with lime and/or hydraulic binders. Mechanical resistance results are quite similar for both the hydraulic binders, suggesting a similar reactivity with the studied sediment sample. However, some discrepancies can be noted on sustainability parameters. Indeed, water resistance after immersion at 40°C is significantly better for the mixtures treated with cement containing more glass-forming oxides (SiO2 + Al2O3) and fluxing (Fe2O3+CaO + MgO + K2O + Na2O). Moreover, the both hydraulic binders can lead to swelling in the road materials as observed in scanning electron microscopy analyses. Indeed, microscopic observations indicated volumetric swelling of treated samples, which is greatly influenced on the one side by ettringite quantity and on the other hand by the presence of water in pores material 
650 4 |a Journal Article 
650 4 |a Marine sediment 
650 4 |a beneficial reuse 
650 4 |a road materials 
650 4 |a sustainability 
650 4 |a waste management 
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650 7 |a Ferric Compounds  |2 NLM 
650 7 |a Minerals  |2 NLM 
650 7 |a Oxides  |2 NLM 
650 7 |a ettringite  |2 NLM 
650 7 |a Silicon Dioxide  |2 NLM 
650 7 |a 7631-86-9  |2 NLM 
650 7 |a lime  |2 NLM 
650 7 |a C7X2M0VVNH  |2 NLM 
700 1 |a Benzerzour, Mahfoud  |e verfasserin  |4 aut 
700 1 |a Mamindy-Pajany, Yannick  |e verfasserin  |4 aut 
700 1 |a van Veen, Eleanor  |e verfasserin  |4 aut 
700 1 |a Boutouil, Mohamed  |e verfasserin  |4 aut 
700 1 |a Abriak, Nor Edine  |e verfasserin  |4 aut 
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773 1 8 |g volume:39  |g year:2018  |g number:5  |g day:01  |g month:03  |g pages:566-580 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2017.1308440  |3 Volltext 
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