Analiza stanja postojećih betonskih građevina izloženih morskom okolišu

master's thesis

• Title (english): Condition assessment of existing concrete structures exposed to marine environment
• Author: Jakov Štrkalj
• Mentor: Ivan Gabrijel (mentor)
• Committee member: Ivan Gabrijel (predsjednik povjerenstva)
• Committee member: Marija Jelčić Rukavina (član povjerenstva)
• Committee member: Bojan Milovanović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; Zagreb
• Defense date and country: 2022-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Morski okoliš smatra se jednim od najnepovoljnijih za betonske konstrukcije zbog velikog broja različitih faktora degradacije koji djeluju na konstrukcijske elemente. U teorijskom dijelu rada prikazan je problem trajnosti betonskih konstrukcija. Prikazana je ovisnost trajnosti o razredu izloženosti, faktorima te mehanizmima trajnosti konstrukcija izloženih tom agresivnom okolišu. U eksperimentalnom dijelu rada analizirat će se svojstva betona izloženog morskom okolišu izvađenog iz konstrukcija u Rijeci, Šibenik i Zadru u različitim zonama izloženosti. Provedena su ispitivanja tlačne čvrstoće, kapilarnog upijanja, količine klorida (RCT) i SEM EDS analiza kojima je pobliže opisano i ocijenjeno stanje konstrukcija.

Abstract (english)

The marine environment is considered one of the most unfavorable for concrete structures due to the large number of different degradation factors that affect structural elements. In the theoretical part of the paper, the problem of the durability of concrete structures is presented. The dependence of durability on exposure class, factors and mechanisms of durability of structures exposed to this aggressive environment is shown. In the experimental part of the work, the properties of concrete exposed to the marine environment derived from constructions in Rijeka, Šibenik and Zadar in different exposure zones will be analyzed. Tests of compressive strength, capillary absorption, rapid chloride test (RCT) and SEM EDS analysis were carried out, which described and evaluated the condition of the structures in more detail.

• Keywords: Betonska konstrukcija; morski okoliš; tlačna čvrstoća; kapilarno upijanje; SEM EDS; RCT
• Keywords (english): Concrete construction; marine environment; compressive strength; capillary absorption; SEM EDS; RCT
• Language: croatian
• URN:NBN: urn:nbn:hr:237:005935
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Construction Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-30 10:47:13