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master's thesis
Razvoj modela hidratacije cementa
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. urn:nbn:hr:149:384763
Martinko, Gordana
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Martinko, G. (2019). Razvoj modela hidratacije cementa (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:384763

Martinko, Gordana. "Razvoj modela hidratacije cementa." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:384763

Martinko, Gordana. "Razvoj modela hidratacije cementa." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:384763

Martinko, G. (2019). 'Razvoj modela hidratacije cementa', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 20 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:384763

Martinko G. Razvoj modela hidratacije cementa [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2019 [cited 2024 December 20] Available at: https://urn.nsk.hr/urn:nbn:hr:149:384763

G. Martinko, "Razvoj modela hidratacije cementa", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:149:384763

Metadata
TitleRazvoj modela hidratacije cementa
Title (english)Cement hydration model development
AuthorGordana Martinko
MentorJuraj Šipušić (mentor)
Committee memberJuraj Šipušić (predsjednik povjerenstva)
Committee memberEmi Govorčin Bajsić (član povjerenstva)
Committee memberKrunoslav Žižek (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2019-09-16, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Materijali pripremljeni uz dodatak cementa (mortovi i betoni) čine složeni polidisperzni i polifazni sustav te je za razvoj modela hidratacije cementa potrebno karakterizirati sustav pora cementne paste koji ovisi o uporabljenom vodocementnom omjeru. Uporabom većeg vodocementnog omjera rezultira veći volumen pora pripravljenog materijala, veća je permeabilnost materijala te je zbog toga i veća brzina korozije i manja trajnost ugrađenog materijala. Ukupni volumen koji zauzimaju čestice cementa u cementnoj pasti ovisi o vodocementnom omjeru, no moguće ga je smanjiti centrifugalnom sedimentacijom. Hidratacija cementne paste i sedimentirane cementne paste praćena je kalorimetrijskim određivanjem topline hidratacije tijekom 2 dana. Slagalina čestica cementa karakterizirana je mjerenjem kapilarnog upijanja i kontaktnog kuta sa različitim kapljevinama na tableti od prešanog cementnog praha. Na temelju provedenih mjerenja kapilarnog upijanja procijenjena je veličina pora slagaline praškastog cementa iz Lucas-Washburnove jednadžbe.
Abstract (english)
Materials prepared with the addition of cement (mortars and concretes) form a complex polydispersed and polyphase system, and in order to develop a cement hydration model, it is necessary to characterize the cement paste pore system, which depends on the water-cement ratio used. Using a larger water-cement ratio results in a larger pore volume of the prepared material, higher permeability of the material, and consequently a higher corrosion rate and less durable material. The total volume occupied by cement particles in the cement paste depends on the water-cement ratio but can be reduced by centrifugal sedimentation. Hydration of cement paste and sedimented cement paste was followed by calorimetric determination of hydration heat over 2 days. The cement particle packing is characterized by measuring the capillary absorption and contact angle with various liquids on a tablet of pressed cement powder. Based on the measurements of capillary absorption, the pore size of the powder cement packing was estimated from the Lucas-Washburn equation.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:384763
Study programmeTitle: Materials Science and Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2022-02-23 14:27:07