prikaz prve stranice dokumenta Toplina hidratacije portland cementa uz dodatak prirodnog zeolita zasićenog željezovim ionima
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master's thesis
Toplina hidratacije portland cementa uz dodatak prirodnog zeolita zasićenog željezovim ionima
diplomski rad
2024. urn:nbn:hr:167:626962
Mustapić, Olga
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

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Mustapić, O. (2024). Toplina hidratacije portland cementa uz dodatak prirodnog zeolita zasićenog željezovim ionima : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:626962

Mustapić, Olga. "Toplina hidratacije portland cementa uz dodatak prirodnog zeolita zasićenog željezovim ionima : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:167:626962

Mustapić, Olga. "Toplina hidratacije portland cementa uz dodatak prirodnog zeolita zasićenog željezovim ionima : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:167:626962

Mustapić, O. (2024). 'Toplina hidratacije portland cementa uz dodatak prirodnog zeolita zasićenog željezovim ionima : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 23 January 2025, https://urn.nsk.hr/urn:nbn:hr:167:626962

Mustapić O. Toplina hidratacije portland cementa uz dodatak prirodnog zeolita zasićenog željezovim ionima : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2024 [cited 2025 January 23] Available at: https://urn.nsk.hr/urn:nbn:hr:167:626962

O. Mustapić, "Toplina hidratacije portland cementa uz dodatak prirodnog zeolita zasićenog željezovim ionima : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:167:626962

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Metadata
TitleToplina hidratacije portland cementa uz dodatak prirodnog zeolita zasićenog željezovim ionima : diplomski rad
Title (english)Heat of hydration of portland cement with the addition of natural zeolite saturated with iron ions : diploma thesis
AuthorOlga Mustapić
MentorDamir Barbir (mentor)
Committee memberPero Dabić (predsjednik povjerenstva)
Committee memberMiroslav Labor (član povjerenstva)
Committee memberDamir Barbir (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2024-10-28, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U radu je određivana toplina hidratacije industrijskog portland cementa (CEM I 42,5 R) s dodatkom prirodnog zeolita zasićenog željezovim ionima i bez dodatka zeolita. Kalorimetrija je provedena tijekom prvih 48 h hidratacije diferencijalnim mikrokalorimetrom pri temperaturi od 20 °C, s omjerom voda/cement V/C = 0,5 tj. omjerom voda/kruto V/K = 0,5, a udjeli zasićenog zeolita bili su 5, 10, 20, 30 mas. %. Koristeći se računalnim programom „Hidratacija cementa“ napravljen je izračun topline hidratacije, brzine kojom se ona oslobađa te stupanj proreagiranosti uzoraka cementnog kompozita s dodatkom zasićenog zeolita i bez njega. Povećanjem udjela zasićenog zeolita smanjuju se vrijednosti topline hidratacije, smanjuje se stupanj proreagiranosti kao i brzina oslobađanja topline. Istovremeno, što je udio zasićenog zeolita veći to će se pojava pika brzine hidratacije pomaknuti prema ranijim vremenima hidratacije. Utvrđene su funkcijske ovisnosti između udjela zasićenog zeolita i ukupno oslobođene topline i vremena pojave maksimalne hidratacije.
Abstract (english)
In this paper the heat of hydration of industrial Portland cement (CEM I 42.5 R) with the addition of natural zeolite saturated with iron ions and without the addition of zeolite was determined. Calorimetry was performed during the first 48 h of hydration with a differential microcalorimeter at a temperature of 20 °C, with a water/cement ratio V/C = 0.5, i.e. a water/solid ratio V/K = 0.5, and the proportion of saturated zeolite was 5, 10, 20, 30 wt. %. Using the computer program "Cement Hydration", the calculation of the heat of hydration, the rate at which it is released, and the degree of overreaction of the cement composite samples with and without the addition of saturated zeolite was made. By increasing the proportion of saturated zeolite, lower values of the heat of hydration and the degree of overreaction were registered, as well as the rate of heat release. At the same time, the higher the proportion of saturated zeolite, the more the appearance of the hydration rate peak will shift towards earlier hydration times. Functional dependencies between the proportion of saturated zeolite and the total released heat and the time of occurrence of maximum hydration were determined.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:626962
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures, Materials and Environmental protection
Course: Materials
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
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Created on2025-01-23 08:32:11