20.500.12556/DiRROS-15860 Using recycled material from the paper industry as a backfill material for retaining walls near railway lines The construction industry uses a large amount of natural virgin material for different geotechnical structures. In Europe alone, 11 million tonnes of solid waste is generated per year as a result of the production of almost 100 million tonnes of paper. The objective of this research is to develop a new geotechnical composite from residues of the deinking paper industry and to present its practical application, e.g., as a backfill material behind a retaining structure. After different mixtures were tested in a laboratory, the technology was validated by building a pilot retaining wall structure in a landslide region near a railway line. It was confirmed that a composite with 30% deinking sludge and 70% deinking sludge ash had a high enough strength but experienced some deformations before failure. Special attention was paid to the impact of transport, which, due to the time lag between the mixing and installation of the composite, significantly reduced its strength. The pilot retaining wall structure promotes the use of recycled materials with a sustainable design, while adhering to government-mandated measures. paper sludge ash deinking sludge paper industry backfill material retaining wall papriniški pepel papirniški mulj zasipni material podporni zid true false true MDPI Angleški jezik Slovenski jezik © 2021 by the authors. Licensee MDPI, Basel, Switzerland. Neznano 2022-12-01 09:41:08 2023-07-04 09:35:41 2023-07-05 03:36:12 0000-00-00 00:00:00 2021 0 0 Nasl. z nasl. zaslona; Opis vira z dne: 28. 1. 2021; Št. članka 979; str. 1-17 iss. 2 Vol. 13 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2021-01-19 624 2071-1050 10.3390/su13020979 49132547 https://www.mdpi.com/2071-1050/13/2/979 Open access 1 affb661c-714b-11ed-a69a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=20977 RAZ_Fifer_Bizjak_Karmen_2021.pdf RAZ_Fifer_Bizjak_Karmen_2021.pdf 1 802CDA0610233F237494978DC764BDFB b8c487dfe991e2f7fcf1aff56f8d4531033e5e6cc338df35e6a20e237ff8f98d 7e3cb8a2-9b17-11ed-b359-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=21436 Zavod za gradbeništvo Slovenije 0 0 0