dc.contributor.author | Novakova, Iveta | |
dc.contributor.author | Jhatial, Ashfaque Ahmed | |
dc.contributor.author | Kekez, Sofija | |
dc.contributor.author | Gjerløw, Eirik | |
dc.contributor.author | Gulik, Volodymyr | |
dc.contributor.author | Kannathasan, Karunamoorthy Rengasamy | |
dc.contributor.author | Vaišnoras, Mindaugas | |
dc.contributor.author | Krasnikovs, Andrejs | |
dc.date.accessioned | 2024-10-04T11:35:17Z | |
dc.date.available | 2024-10-04T11:35:17Z | |
dc.date.issued | 2024-06-27 | |
dc.description.abstract | The interfacial transition zone (ITZ) is the weakest phase in concrete, characterised by higher
porosity and being prone to microcrack formation. Additionally, the ITZ is created when dispersed
fibre reinforcement is present. Although fibres improve flexural strength, they can negatively impact
other properties. This research investigates the ITZ of fibre-reinforced concrete where macro-basalt
fibres (BFs) and oil shale ash (OSA), as an SCM, were used with the aim of modifying the properties of
concrete, enhancing the ITZ, and reducing its carbon footprint. Six different concrete mixes with OSA
doses between 10% and 30% and a constant BF dose of 8.0 kg per 1 m<sup>3</sup> of concrete were prepared and
tested. The ITZ was analysed with SEM images and verified through its mechanical properties. The
results showed that the presence of OSA improved bonding and densified the microstructure of the
paste, especially in the ITZ, resulting in a nearly constant flexural strength at up to a 20% replacement
and only a 6.7% decrease in compressive strength while reducing the global warming potential by
19.24 kg CO<sub>2</sub> equivalent in the mix with 10% OSA replacement. Higher replacement ratios had a
negative impact on the mechanical properties, as the OSA had not reacted entirely and served partly
as an inert filler. | en_US |
dc.identifier.citation | Novakova, Jhatial, Kekez, Gjerløw, Gulik, Kannathasan, Vaišnoras, Krasnikovs. Investigating the Influence of Oil Shale Ash and Basalt Composite Fibres on the Interfacial Transition Zone in Concrete. Buildings. 2024;14(7) | en_US |
dc.identifier.cristinID | FRIDAID 2286060 | |
dc.identifier.doi | 10.3390/buildings14071952 | |
dc.identifier.issn | 2075-5309 | |
dc.identifier.uri | https://hdl.handle.net/10037/35058 | |
dc.language.iso | eng | en_US |
dc.publisher | MDPI | en_US |
dc.relation.journal | Buildings | |
dc.rights.accessRights | openAccess | en_US |
dc.rights.holder | Copyright 2024 The Author(s) | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0 | en_US |
dc.rights | Attribution 4.0 International (CC BY 4.0) | en_US |
dc.title | Investigating the Influence of Oil Shale Ash and Basalt Composite Fibres on the Interfacial Transition Zone in Concrete | en_US |
dc.type.version | publishedVersion | en_US |
dc.type | Journal article | en_US |
dc.type | Tidsskriftartikkel | en_US |
dc.type | Peer reviewed | en_US |