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undergraduate thesis
Utjecaj sastava betona na vrijednosti koeficijenta difuzije klorida
2023. urn:nbn:hr:157:442515
Načinović, Dalen
University of Rijeka
Faculty of Civil Engineering
Department of Computer Modeling of Materials and Structures

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Načinović, D. (2023). Utjecaj sastava betona na vrijednosti koeficijenta difuzije klorida (Undergraduate thesis). Rijeka: University of Rijeka, Faculty of Civil Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:157:442515

Načinović, Dalen. "Utjecaj sastava betona na vrijednosti koeficijenta difuzije klorida." Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, 2023. https://urn.nsk.hr/urn:nbn:hr:157:442515

Načinović, Dalen. "Utjecaj sastava betona na vrijednosti koeficijenta difuzije klorida." Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, 2023. https://urn.nsk.hr/urn:nbn:hr:157:442515

Načinović, D. (2023). 'Utjecaj sastava betona na vrijednosti koeficijenta difuzije klorida', Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, accessed 14 January 2025, https://urn.nsk.hr/urn:nbn:hr:157:442515

Načinović D. Utjecaj sastava betona na vrijednosti koeficijenta difuzije klorida [Undergraduate thesis]. Rijeka: University of Rijeka, Faculty of Civil Engineering; 2023 [cited 2025 January 14] Available at: https://urn.nsk.hr/urn:nbn:hr:157:442515

D. Načinović, "Utjecaj sastava betona na vrijednosti koeficijenta difuzije klorida", Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, Rijeka, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:157:442515

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Metadata
TitleUtjecaj sastava betona na vrijednosti koeficijenta difuzije klorida
Title (english)Effect of Concrete Composition on the Value of Chloride Ion Diffusion Coefficient
AuthorDalen Načinović
MentorNatalija Bede Odorčić (mentor)
Committee memberPaulo Šćulac (predsjednik povjerenstva)
Committee memberPaulina Krolo (član povjerenstva)
Committee memberNatalija Bede Odorčić (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Civil Engineering
(Department of Computer Modeling of Materials and Structures)
Rijeka
Defense date and country2023-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Basic Technical Sciences
Materials
Abstract
Na armiranobetonskim konstrukcijama koje su izložene agresivnom okolišu obično nastaju oštećenja prilikom korodiranja armature izazvana kloridnim ionima. Najčešće oštećenja nastaju u obliku pukotina i napuknuća zaštitnog sloja betona prilikom bubrenja korozije, koja ima negativne utjecaje na trajnost a time posljedično i na nosivost same konstrukcije. Cilj ovog završnog rada bio je proučiti utjecaj sastava betona korištenjem mineralnih dodataka i cementa koji poboljšavaju trajnost betona određivanjem koeficijent difuzije klorida. U tu svrhu, provedeno je eksperimentalno istraživanje na vlastitim mješavinama betona visokih uporabnih svojstava, od čega se u jednoj mješavini umjesto miješanog portland cementa upotrijebio sulfatnootporni cement a u preostalih četiri mješavine dodani su različiti postotni udjeli silicijske prašine na istu količinu miješanog portland cementa. Na svježem betonu provedeno je ispitivanja konzistencije metodom slijeganja. Na očvrslom betonu provedeno je ispitivanje tlačne čvrstoće betona i otpornosti betona na prodor klorida. Rezultati ispitivanja su uspoređeni s rezultatima ispitivanja referentne betonske mješavine, spravljene sa miješanim portland cementom i bez silicijske prašine. Rezultati ispitivanja su analizirani te je na temelju njih izveden zaključak.
Abstract (english)
In reinforced concrete structures exposed to aggressive environments, damages usually occur due to corrosion of the reinforcement caused by chloride ions. The most common damages occur in the form of cracks and spalling of the protective concrete layer during corrosion-induced expansion, which negatively impacts the durability and consequently the load-bearing capacity of the structure. The aim of this thesis was to study the effect of the concrete composition prepared with mineral additives and cement which impove concrete durability on the chloride diffusion coefficient. For this purpose, an experimental study was conducted on own mixtures of high-performance concrete. In one mixture, sulfate- resistant cement was used instead of Portland composite cement, while in the remaining four mixtures, different percentages of silica fume were added to the same amount of Portland cement. Consistency tests were conducted on fresh concrete using the slump method. Compressive strength and chloride penetration resistance tests were performed on hardened concrete. The test results were compared with a reference concrete mixture prepared with Portland composite cement and without silica fume. The test results were analyzed, and a conclusion was drawn based on them.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:157:442515
Study programmeTitle: Vocational undergraduate study of Civil Engineering
Study programme type: professional
Study level: undergraduate
Academic / professional title: prvostupnik (baccalaureus) inženjer građevinarstva/prvostupnica (baccalaurea) inženjerka građevinarstva (prvostupnik (baccalaureus) inženjer građevinarstva/prvostupnica (baccalaurea) inženjerka građevinarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Created on2023-11-25 12:29:58