Osnovna trajnosna svojstva betona normalnih čvrstoća s velikim udjelom zamjene cementa

master's thesis

• Title (english): Basic durability properties of normal strength concrete with a high level of cement replacement
• Author: Klara Bosnar
• Mentor: Marijana Serdar (mentor)
• Committee member: Marijana Serdar (predsjednik povjerenstva)
• Committee member: Marijan Skazlić (član povjerenstva)
• Committee member: Nina Štirmer (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Materials); Zagreb
• Defense date and country: 2022-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Cementna industrija potaknuta vlastitim utjecajem na okoliš okreće se održivim rješenjima i energetski učinkovitim vezivima kako bi smanjila utjecaj na okoliš. Pogodno rješenje u minimalizaciji emisija CO2 je korištenje lokalno dostupnih cementnih dodataka. Za industrijsku primjenu cemenata s velikim zamjenama klinkera potrebno je dokazati da se upotrebom takvih veziva svojstva betona ne mijenjaju. Tema ovog diplomskog rada je određivanje osnovnih trajnosnih svojstava betona s velikom zamjenom cementa u svrhu smanjenja ekološkog utiska. Cilj je utvrditi mogućnost primjene veziva na osnovi kalciniranih glina i vapnenca u betonima normalnih čvrstoća bez značajnog narušavanja trajnosti. U svrhu rada predviđena su ispitivanja otpornosti betonskih uzoraka na smrzavanje i odmrzavanje, karbonatizaciju, određivanje dubine prodora vode pod tlakom i određivanje tlačne čvrstoće prema hrvatskim normama. Konačni rezultat ovog istraživanja je procjena mogućeg smanjenja cementa korištenjem lokalnih cementnih dodataka za proizvodnju betona koji se može koristiti u različitim uvjetima izloženosti.

Abstract (english)

The cement industry, driven by its own environmental impact, is turning to sustainable solutions and energy-efficient binders to reduce its environmental impact. A suitable solution in minimizing CO2 emissions is the use of locally available cement additives. For the industrial application of cements with large clinker replacements, it is necessary to prove that the use of such binders does not change the properties of concrete. The topic of this thesis is to determine the basic durability properties of concrete with a large replacement of cement in order to reduce the environmental impact. The aim is to determine the possibility of applying binders based on calcined clays and limestone in concrete of normal strength without significant impairment of durability. For the purpose of this study, tests of resistance to freezing and thawing, carbonation, water penetration under pressure and compressive strength according to Croatian standards are planned. The final result of this research is an assessment of the possible reduction of cement using local cement admixtures for the production of concrete that can be used in different exposure conditions.

• Keywords: kalcinirana glina; leteći pepeo; tlačna čvrstoća; vodopropusnost; karbonatizacija; otpornost na smrzavanje i odmrzavanje
• Keywords (english): calcined clay; fly ash; compressive strength; water permeability; carbonation; frost and thaw resistance
• Language: croatian
• URN:NBN: urn:nbn:hr:237:396342
• 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 10:58:29