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Title:Ultravisokozmogljivi beton z bazaltnimi vlakni ter samočistilnimi in luminiscenčnimi površinami
Authors:ID Ivanič, Andrej (Author)
ID Mumtaz, Ahmad Rizwan (Author)
ID Bede Odorčić, Natalija (Author)
ID Garro, Núria (Author)
ID Lubej, Samo (Author)
ID Comite, Antonio (Author)
ID Pagliero, Marcello (Author)
ID Škrilec, Nikolina (Author)
ID Kravanja, Gregor (Author)
Files:.pdf GradbeniVestnik-2026_01-017-ULTRA-HIGH-PERFORMANCE_CONCRETE_WITH_BASALT_FIBRES_AND_SELF-CLEANING,_LUMINESCENT_SURFACES.pdf (6,85 MB)
MD5: 9932EAD6CD17EC318635D15B0A0C8CD6
 
URL https://gradbenivestnik.zveza-dgits.si/prispevek/2026_01-17-28
 
Language:Slovenian
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:Raziskava obravnava razvoj ultravisokozmogljivega betona (UHPC), zasnovanega na optimizirani cementni matriki z nizkim vodovezivnim razmerjem, doseženim z metodo mokrega zgoščanja delcev. V mešanico je bil dodan 1 vol.% bazaltnih vlaken, ki so bistveno izboljšala duktilnost materiala, zmanjšala njegovo krhkost ter učinkovito premoščala nastale razpoke. Analiza SEM-EDS je potrdila homogeno razporeditev vlaken in njihovo dobro vez s hidratacijsko matrico. Razvita mešanica je dosegla tlačno trdnost 138,5 MPa in upogibno trdnost 12,5 MPa, kar kljub delni nadomestitvi cementa z metakaolinom potrjuje zelo visoko mehansko zmogljivost UHPC. Za pridobitev dodatnih multifunkcionalnih lastnosti, kot sta izrazita vodoodbojnost in luminiscenčno emitiranje svetlobe, je bila uporabljena dvoslojna biomimetična površinska obdelava na osnovi nanodelcev SiO2 in luminiscenčnega prahu. Preizkusi omočenja so pokazali stabilno superhidrofobnost s kontaktnimi koti do 154,9°, luminiscenčni sloj pa je omogočil oddajanje vidne zelene svetlobe pri približno 520 nm. Rezultati potrjujejo, da sinergija optimizirane UHPC-matrice, bazaltnih vlaken in funkcionalnih površinskih slojev pomembno razširja uporabnost betona, zlasti pri trajnostno zasnovanih elementih, kjer sta nadzor razpok in zaščita pred vodo ključnega pomena, hkrati pa je zagotovljena pasivna nočna vidljivost brez zunanjega vira energije.
Keywords:ultravisokozmogljivi beton, UHPC, bazaltna vlakna, metakaolin, metoda mokrega zgoščanja delcev, superhidrofobnost, luminiscenca
Publication status:Published
Publication version:Version of Record
Publication date:01.03.2026
Publisher:Zveza društev gradbenih inženirjev in tehnikov Slovenije in Matična sekcija gradbenih inženirjev Inženirske zbornice Slovenije
Year of publishing:2026
Number of pages:str. 17-28
Numbering:Let. 75, št. 01
PID:20.500.12556/DKUM-97651 New window
UDC:691.32:620.1:539.51
ISSN on article:2536-4332
COBISS.SI-ID:273389059 New window
Publication date in DKUM:30.03.2026
Views:184
Downloads:11
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Gradbeni vestnik. glasilo Zveze društev gradbenih inženirjev in tehnikov Slovenije in Matične sekcije gradbenih inženirjev Inženirske zbornice Slovenije
Publisher:Zveza društev gradbenih inženirjev in tehnikov Slovenije, Matična sekcija gradbenih inženirjev Inženirske zbornice Slovenije
ISSN:2536-4332
COBISS.SI-ID:288708608 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0046-2019
Name:Separacijski procesi in produktna tehnika

Funder:EC - European Commission
Funding programme:ERASMUS+

Funder:Univerza na Reki, Evropski sklad za regionalni razvoj (ESRR)
Project number:RC.2.2.06-0001
Name:Research Infrastructure for Campus-based Laboratories

Licences

License:CC BY-SA 4.0, Creative Commons Attribution-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-sa/4.0/
Description:This Creative Commons license is very similar to the regular Attribution license, but requires the release of all derivative works under this same license.

Secondary language

Language:English
Title:Ultra high-performance concrete with basalt fibres and self-cleaning, luminescent surfaces
Abstract:The study addresses the development of ultra-high-performance concrete (UHPC) based on an optimized cementitious matrix with a low water-to-binder ratio, achieved using the wet particle packing method. A volume fraction of 1 vol. % basalt fibres was incorporated into the mixture, which significantly improved material ductility, reduced brittleness, and effectively bridged the generated cracks. SEM-EDS analysis confirmed the homogeneous distribution of fibers and their strong bonding with the hydration matrix. The developed mixture achieved a compressive strength of 138.5 MPa and a flexural strength of 12.5 MPa, which, despite the partial replacement of cement with metakaolin, confirms the very high mechanical performance of UHPC. To obtain additional multifunctional properties, such as pronounced water repellency and luminescent light emission, a double-layer biomimetic surface treatment based on SiO2 nanoparticles and luminescent powder was applied. Wettability tests demonstrated stable superhydrophobic behaviour with contact angles of up to 154.9°, while the luminescent layer enabled emission of visible green light at approximately 520 nm. The results confirm that the synergy of the optimized UHPC matrix, basalt fibres, and functional surface layers significantly expands the applicability of concrete, particularly in sustainably designed elements where crack control and water protection are crucial, while also providing passive nighttime visibility without an external energy source.
Keywords:ultra-high-performance concrete, basalt fibres, metakaolin, wet particle packing method, superhydrophobic, luminescence


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