diplomska naloga št.: 418/B-GR
Maša Pavlič (Avtor), Drago Saje (Mentor)

Povzetek

Betoni visoke trdnosti imajo v primerjavi z običajnimi betoni nižje vodocementno razmerje, zaradi katerega so bolj podvrženi samoizsuševanju, kar povzroča avtogeno krčenje in pojav razpok. Nižje vodocementno razmerje betonu zagotavlja višjo tlačno trdnost. V diplomski nalogi sem obravnavala betone visoke trdnosti z dodanimi steklenimi vlakni. Preučevala sem vpliv steklenih vlaken na časovni razvoj avtogenega krčenja betona visoke trdnosti. V betonsko mešanico sem vmešala steklena vlakna, dolžine 12 mm. Eksperimentalno delo sem izvajala v laboratoriju Fakultete za gradbeništvo in geodezijo. Rezultate meritev avtogenega krčenja in tlačne trdnosti betonov sem primerjala s primerljivim betonom brez vlaken. Po analiziranju rezultatov meritev sem ugotovila, da steklena vlakna zmanjšajo avtogeno krčenje in povečajo tlačno trdnost betona visoke trdnosti.

Ključne besede

gradbeništvo;diplomske naloge;UNI;GR;B-GR;beton visoke trdnosti;vlaknasti beton;avtogeno krčenje;steklena vlakna;

Podatki

Jezik: Slovenski jezik
Leto izida:
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik: [M. Pavlič]
UDK: 691.32(043.2)
COBISS: 124269571 Povezava se bo odprla v novem oknu
Št. ogledov: 1105
Št. prenosov: 172
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Effect of glass fibres on the shrinkage of high-strength concrete
Sekundarni povzetek: High-strength concretes have a lower water-cement ratio than conventional concretes, which makes them more prone to self-desiccation, resulting in autogenous shrinkage and cracking. The lower watercement ratio gives the concrete a higher compressive strength. In my diploma thesis, I studied high-strength concretes with glass fibres addition. I investigated the effect of glass fibres on the time develpment of autogenous shrinkage in high-strength concrete. I mixed 12 mm glass fibres into the concrete mix. The experimental work was carried out in the laboratory of the Faculty of Civil and Geodetic Engineering. The results of the measurements of autogenous shrinkage and compressive strength were compared with a comparable concrete without fibres. After analysing the measurement results, I found out that glass fibres reduce the autogenous shrinkage and increase the compressive strength of high-strength concrete.
Sekundarne ključne besede: graduation thesis;civil engineering;high-strength concrete;fibre reinforced concrete;autogenous shrinkage;numerical methodsautogenous shrinkage;glass fibres;
Vrsta dela (COBISS): Diplomsko delo/naloga
Komentar na gradivo: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani: X, 46 str.
ID: 16901247