| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font
First page > Show document

Show document Help

Title:Development and characterization of novel ultra-high performance concrete with superhydrophobic and self-luminescent properties
Authors:ID Mumtaz, Ahmad Rizwan (Author)
ID Kravanja, Gregor (Mentor) More about this mentor... New window
ID Lubej, Samo (Comentor)
ID Ivanič, Andrej (Comentor)
Files:.pdf DOK_Mumtaz_Ahmad_Rizwan_2024.pdf (12,91 MB)
MD5: 7F88B6C855531F0FB489488232B65D36
 
Language:Slovenian
Work type:Doctoral dissertation
Typology:2.08 - Doctoral Dissertation
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:This study explores the potential of using basalt reinforced UHPC by incorporating simulta- neously self-cleaning and self-luminescent features, paving the way for sustainable advancements in civil engineering. New green formulations of UHPC were developed by integrating supplementary cementitious materials and optimizing water to the binder ratio, followed by using basalt fibers to enhance strength and ductility. The fabricated samples with high particle-packing density exhibit sufficient workability and compressive strength up to 136 MPa, and, when incorporating basalt fibers, a notable reduction in brittleness. The inner microstructure of basalt fibers was observed to be smooth, homogeneously distributed, and well adhered to the UHPC matrix. To ensure the desired long-lasting visual appearance of decorative UHPC and reduce future maintenance costs, a time-effective strategy for creating a light-emitting biomimetic surface design was introduced. The samples exhibit high surface roughness, characterized by micro to nano-scale voids, displaying superhydrophobicity with contact angles reaching up to 155.45◦. This is accompanied by roll-off angles decreasing to 7.1◦, highlighting their self-cleaning features. The self-luminescence feature showcased intense initial light emission, offering a potential energy-efficient nighttime lighting solution.
Keywords:UHPC, basalt fibers, mechanical properties, morphology, superhydrophobic, self-luminescence
Place of publishing:Maribor
Publisher:[A. R. Mumtaz]
Year of publishing:2024
PID:20.500.12556/DKUM-88455 New window
UDC:666.972.5-12(043.3)
COBISS.SI-ID:213063427 New window
Publication date in DKUM:16.10.2024
Views:0
Downloads:11
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FG
:
MUMTAZ, Ahmad Rizwan, 2024, Development and characterization of novel ultra-high performance concrete with superhydrophobic and self-luminescent properties [online]. Doctoral dissertation. Maribor : A. R. Mumtaz. [Accessed 14 March 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=88455
Copy citation
  
Average score:
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
(0 votes)
Your score:Voting is allowed only for logged in users.
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.

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.
Licensing start date:26.04.2024

Secondary language

Language:English
Title:Razvoj in karakterizacija novega visokozmogljivega betona s superhidrofobnimi in luminiscentnimi lastnostmi
Abstract:Ta študija raziskuje možnosti uporabe visoko zmogljivega betona (UHPC), ojačenega z bazaltom, z vključevanjem hkratnih samočistilnih in samosvetlečih funkcij, kar utira pot trajnostnemu napredku v gradbeništvu. Nove zelene formulacije UHPC so bile razvite z vključitvijo dodatnih cementnih materialov in optimizacijo razmerja med vodo in vezivom, čemur je sledila uporaba bazaltnih vlaken za povečanje trdnosti in nateznosti. Izdelani vzorci z visoko gostoto pakiranja delcev kažejo zadostno obdelovalnost in tlačno trdnost do 136 MPa ter, pri dodajanju bazaltnih vlaken, opazno zmanjšanje krhkosti. Notranja mikrostruktura bazaltnih vlaken je bila gladka, homogeno porazdeljena in dobro oprijeta na matriko UHPC. Da bi zagotovili želeni dolgotrajni videz dekorativnega UHPC in zmanjšali prihodnje stroške vzdrževanja, je bila uvedena časovno učinkovita strategija za ustvarjanje biomimetičnega dizajna površine, ki oddaja svetlobo. Vzorci kažejo visoko hrapavost površine, za katero so značilne mikro do nano praznine, ki kažejo superhidrofobnost s stičnimi koti, ki segajo do 155,45°. To spremlja kot kotaljanja, ki se zmanjša na 7,1◦, kar izboljšuje njihove samočistilne lastnosti. Funkcija samosvetljenja je prikazala intenzivno začetno svetlobno emisijo in ponudila potencialno energetsko učinkovito nočno osvetlitev.
Keywords:UHPC, bazaltna vlakna, mehanske lastnosti, morfologija, superhidrofobnost, samosvetljenje luminiscence


Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica