Digital repository of Slovenian research organisations

Show document
A+ | A- | Help | SLO | ENG

Title:Increasing the amorphous content in river sediments intended for supplementary cementitious materials using flame synthesis
Authors:ID Wisniewski, Wolfgang (Author)
ID Kraxner, Jozef (Author)
ID Žibret, Lea (Author)
ID Galusek, Dušan (Author)
ID Ducman, Vilma (Author)
Files:URL URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S2352710224012130?via%3Dihub
 
.pdf PDF - Presentation file, download (2,50 MB)
MD5: 1A3D15D4C4B71F4BC129D7242A0033E7
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:Dredged river sediments are currently a waste material which is mainly landfilled or reintegrated into rivers. They can also be used as a renewable resource for the construction sector. Pre- treatments at high temperatures allow their use for more advanced applications such as supplementary cementitious materials (SCMs) or as a precursor for alkali activated materials (AAMs). The work presented here shows that flame synthesis can be used to almost completely vitrify such sediments and increase their leachability for Al and Si beyond the levels achieved by conventional calcination at 750–950 ◦C for 1h. The reactivity of the prepared samples was analyzed via the Si and Al solubility in 10 M NaOH and was generally increased by the applied treatments but maximized by flame synthesis. Their microstructure was analyzed using scanning electron microscopy and their phase composition was monitored using X-ray diffraction. The results show an almost complete amorphization of the sediments by flame synthesis, however their reactivity does not increase at the same rate.
Keywords:sediments, SCM, vitrification, properties
Publication status:Published
Publication version:Version of Record
Publication date:17.05.2024
Publisher:Elsevier
Year of publishing:2024
Number of pages:str. 1-8
Numbering:Vol. 91, [article no.] 109645
PID:20.500.12556/DiRROS-18989 New window
UDC:620.1/.2
ISSN on article:2352-7102
DOI:10.1016/j.jobe.2024.109645 New window
COBISS.SI-ID:196163587 New window
Copyright:© 2024 The Authors.
Note:Nasl. z nasl. zaslona; Opis vira z dne 21. 5. 2024;
Publication date in DiRROS:23.05.2024
Views:765
Downloads:454
Metadata:XML DC-XML DC-RDF
:
WISNIEWSKI, Wolfgang, KRAXNER, Jozef, ŽIBRET, Lea, GALUSEK, Dušan and DUCMAN, Vilma, 2024, Increasing the amorphous content in river sediments intended for supplementary cementitious materials using flame synthesis. Journal of building engineering [online]. 2024. Vol. 91, no. 109645, p. 1–8. [Accessed 7 April 2025]. DOI 10.1016/j.jobe.2024.109645. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=18989
Copy citation
  
Share:Bookmark and Share


Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Record is a part of a journal

Title:Journal of building engineering
Publisher:Elsevier
ISSN:2352-7102
COBISS.SI-ID:525380633 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:L7-2629
Name:Vrednotenje in remediacija sedimentov za nadaljnjo uporabo v gradbenem sektorju
Acronym:READY4USE

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:sedimenti, SCM, zasteklitev, lastnosti


Back