Utilization of sediments dredged from marine ports as a principal component of composite material
| Autor: | Jacqueline C. Stella, Cristofer B. Scremim, Daniela E. Pedroso, Otavio M. Fortini, Kirill Alekseev, Roberto C.Y. Pan, Andrea Molinetti, Filipe G. Sanches, Vsévolod Mymrin |
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| Rok vydání: | 2017 |
| Předmět: |
Pollution
Absorption of water Waste management Renewable Energy Sustainability and the Environment Strategy and Management media_common.quotation_subject 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences engineering.material 01 natural sciences Debris Industrial and Manufacturing Engineering Compressive strength 021105 building & construction Principal component analysis Demolition engineering Environmental science Composite material 0105 earth and related environmental sciences General Environmental Science media_common Linear shrinkage Lime |
| Zdroj: | Journal of Cleaner Production. 142:4041-4049 |
| ISSN: | 0959-6526 |
| DOI: | 10.1016/j.jclepro.2016.10.035 |
| Popis: | The main purpose of this research is to develop technically, economically, and environmentally attractive construction materials from sediments dredged from Brazilian seaports. The final composite material contains 50 to 60 wt% in mass of sediments and thus creates an opportunity to diminish the pollution of the Atlantic Ocean. Construction and demolition debris (20–35%) and lime production wastes (15–30%) were used as components of the composite materials. Uniaxial compressive strength values reach 6.3 MPa on the 3rd day and 14.5 MPa on the 90th day; linear shrinkage varied between 0.07% and 0.35%, water absorption - between 11.0 and 13.4%. These values attend the demands of Brazilian norms on conventional bricks, blocks, etc. XRD, XRF, SEM, EDS, AAS and LAMMA analysis showed that amorphous new formations are responsible for material strengthening. |
| Databáze: | OpenAIRE |
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