1. Using Recycled Material from the Paper Industry as a Backfill Material for Retaining Walls near Railway Lines
- Author
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Karmen Fifer Bizjak, Barbara Likar, and Stanislav Lenart
- Subjects
Municipal solid waste ,Geography, Planning and Development ,Composite number ,backfill material ,lcsh:TJ807-830 ,0211 other engineering and technologies ,Mixing (process engineering) ,lcsh:Renewable energy sources ,02 engineering and technology ,010501 environmental sciences ,Management, Monitoring, Policy and Law ,Retaining wall ,01 natural sciences ,law.invention ,law ,021105 building & construction ,11. Sustainability ,Sustainable design ,zasipni material ,lcsh:Environmental sciences ,0105 earth and related environmental sciences ,lcsh:GE1-350 ,Renewable Energy, Sustainability and the Environment ,lcsh:Environmental effects of industries and plants ,Landslide ,Deinking ,Pulp and paper industry ,podporni zid ,paper sludge ash, deinking sludge, paper industry, backfill material, retaining wall, open access ,retaining wall ,udc:624 ,paper industry ,lcsh:TD194-195 ,Construction industry ,papriniški pepel ,620.1/.2 ,paper sludge ash ,Environmental science ,papriniški pepel, papirniški mulj, zasipni material, podporni zid, odprti dostop ,papirniški mulj ,deinking sludge - Abstract
The construction industry uses a large amount of natural virgin material for differentgeotechnical structures. In Europe alone, 11 million tonnes of solid waste is generated per year asa result of the production of almost 100 million tonnes of paper. The objective of this research is todevelop a new geotechnical composite from residues of the deinking paper industry and to present itspractical application, e.g., as a backfill material behind a retaining structure. After different mixtureswere tested in a laboratory, the technology was validated by building a pilot retaining wall structurein a landslide region near a railway line. It was confirmed that a composite with 30% deinking sludgeand 70% deinking sludge ash had a high enough strength but experienced some deformations beforefailure. Special attention was paid to the impact of transport, which, due to the time lag betweenthe mixing and installation of the composite, significantly reduced its strength. The pilot retainingwall structure promotes the use of recycled materials with a sustainable design, while adhering togovernment-mandated measures. Nasl. z nasl. zaslona. Opis vira z dne: 28. 1. 2021. Št. članka 979. Abstract. Bibliografija: str. 16-17.
- Published
- 2021
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