Environmentally clean materials from contaminated marine dredged sludge, wood ashes and lime production wastes
| Autor: | Cristofer B. Scremim, Roberto C.Y. Pan, Jacqueline C. Stella, Vsévolod Mymrin, João C. Bosco, Monica A. Avanci, Paulo H.B. Rolim |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Brick
Absorption of water Waste management Water resistance Renewable Energy Sustainability and the Environment 020209 energy Strategy and Management 05 social sciences Wood ash 02 engineering and technology Building and Construction engineering.material Contamination Bulk density Industrial and Manufacturing Engineering Sustainable construction 050501 criminology 0202 electrical engineering electronic engineering information engineering engineering Environmental science 0505 law General Environmental Science Lime |
| Zdroj: | Journal of Cleaner Production. 307:127074 |
| ISSN: | 0959-6526 |
| DOI: | 10.1016/j.jclepro.2021.127074 |
| Popis: | The aim of this study was to develop environment-friendly composites from dredged sediments (DS) from the seaport of Paranagua, Brazil (30–70 wt %), wood ashes (WA) (5–40%), and lime production wastes (LPW) (15–30%). The materials' characterization was carried out by axial compressive and water resistance, water absorption, bulk density, XRD, MEV, EDS mapping, LAMMA, and AAS. The samples' axial resistance reached 2.39 MPa on the 3rd day, and 8.77 MPa on the 180th day. The water absorption values ranged from 9.5% to 17.2% on the 28th day and from 8.1% to 14.6% on the 90th day. All these changes took place due to the synthesis of amorphous materials, mainly carbonates. The developed composites can be used as road base materials, cementless concrete, non-fired brick and similar sustainable construction materials. The widespread DS use by this ecologically clean method can significantly improve oceans and industrial regions’ environmental situation and decrease natural resource consumption for civil construction. |
| Databáze: | OpenAIRE |
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