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Title:Luminiscenčni superhidrofobni beton z dodatkom mikrosilike in metakaolina : diplomsko delo
Authors:ID Škrilec, Nikolina (Author)
ID Kravanja, Gregor (Mentor) More about this mentor... New window
ID Ivanič, Andrej (Comentor)
Files:.pdf UN_Skrilec_Nikolina_2022.pdf (2,11 MB)
MD5: F11E9728DB4BFDD0FB3749791978D41D
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:V zaključnem delu smo raziskovali vpliv mikrosilike in metakaolina na lastnosti visokozmogljivega in večnamenskega betona. Z namenom izboljšanja upogibne trdnosti smo betonom dodali še mešanico polivinil alkoholnih (PVA) in polipropilenskisih (PP) vlaken. Visokozmogljivemu betonu smo dodali tudi luminiscenčni prah, saj smo želeli še preučiti njegovo sposobnost emitiranja svetlobe v temi. Površine betonskih vzorcev smo modificirali s hidrofobnimi dodatki in nanodelci. Uspešno smo pripravili visokozmogljive betone, ki imajo superhidrofobne površine in sposobnost emitiranja svetlobe v temi. Tlačno trdnost betonov z dodatki mikrosilike in metakaolina, smo izboljšali za 79,57 % in za 89,19 %. Ugotovili smo, da dodatek metakaolina v primerjavi z dodatkom mikrosilike bolj ugodno vpliva na intenziteto in čas emitacije svetlobe. Z modifikacijo betonske površine smo dosegli kontaktne kote vodnih kapljic večje od 150°. Pripravljeni betoni imajo velik potencial v gradbeni praksi pri konstrukcijah z daljšimi razponi, ki so pogosto izpostavljeni koroziji, kloru in sulfidom. Nadalje se ti betoni lahko uporabijo tudi za osvetljevanje ali kot signalizacija, kjer je otežena izvedba umetne osvetlitve.
Keywords:beton, mikrosilika, metakaolin, luminiscenčni beton, hibridna vlakna, superhidrofobni beton
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[N. Škrilec]
Year of publishing:2022
Number of pages:1 spletni vir (1 datoteka PDF (IX, 36 f.))
PID:20.500.12556/DKUM-82714 New window
UDC:666.972.16.017(043.2)
COBISS.SI-ID:136061443 New window
Publication date in DKUM:19.09.2022
Views:963
Downloads:100
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FG
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:30.08.2022

Secondary language

Language:English
Title:Luminescent superhydrophobic concrete with added silica fume and metakaolin
Abstract:In this research we analyzed the effect on the properties of high-performance concrete by adding silica fume and metakaolin. Hybrid polyvinyl alcohol (PVA) and polypropylene (PP) fibers were also added to these improved concrete mixes which further enhanced the flexural strength. In order to test light emitting abilities of our high-performance concrete we added luminescent pigment. The surface of our samples was modified with hydrophobic additives and nanoparticles. High performance concrete with superhydrophobic surfaces and light emitting abilities was successfully prepared. The concrete mix containing silica fume or metakaolin had up to 79,57 % and 89,19 % higher compressive strength. Adding metakaolin had a better effect on light intensity and emission compared to silica fume. After modifying concrete surfaces, we achieved contact angles of water droplets greater than 150°. All of the prepared concrete mixes could have great potential in construction especially when dealing with corrosion, sulfides and chlorides. Furthermore, these mixes could also be used for illumination and signalization where it is difficult to use artificial lighting.
Keywords:concrete, silica fume, metakaolin, luminescent concrete, hybrid fibers, superhydrophobic concrete


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