prikaz prve stranice dokumenta Chemical resistance of cement paste to the action of deionized water
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doctoral thesis
Chemical resistance of cement paste to the action of deionized water
Zagreb: University of Zagreb, Faculty of Science, 2020. urn:nbn:hr:217:449477
Đuroković, Marija
University of Zagreb
Faculty of Science
Department of Chemistry

Cite this document

Đuroković, M. (2020). Chemical resistance of cement paste to the action of deionized water (Doctoral thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:449477

Đuroković, Marija. "Chemical resistance of cement paste to the action of deionized water." Doctoral thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:449477

Đuroković, Marija. "Chemical resistance of cement paste to the action of deionized water." Doctoral thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:449477

Đuroković, M. (2020). 'Chemical resistance of cement paste to the action of deionized water', Doctoral thesis, University of Zagreb, Faculty of Science, accessed 27 January 2021, https://urn.nsk.hr/urn:nbn:hr:217:449477

Đuroković M. Chemical resistance of cement paste to the action of deionized water [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Science; 2020 [cited 2021 January 27] Available at: https://urn.nsk.hr/urn:nbn:hr:217:449477

M. Đuroković, "Chemical resistance of cement paste to the action of deionized water", Doctoral thesis, University of Zagreb, Faculty of Science, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:217:449477

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Metadata
TitleChemical resistance of cement paste to the action of deionized water
Title (croatian)Kemijska otpornost cementne paste prema djelovanju deionizirane vode
AuthorMarija Đuroković
MentorDubravka Matković-Čalogović (mentor)
MentorIvan janotka https://orcid.org/0000-0002-3601-5277 (komentor)
Committee memberSanda Rončević (predsjednik povjerenstva)
Committee memberDubravka Matković-Čalogović (član povjerenstva)
Committee memberJelena Bleiziffer (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2020-12-19, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Universal decimal classification
(UDC)		54
NATURAL SCIENCES
Chemistry. Crystallography. Mineralogy
Abstract
Introduction of new, sustainable materials into the existing civil engineering standards requires durability data for different degradation processes. Unfortunately, durability tests are not standardized. In this work degradation process of decalcification, also called leaching, of cement pastes was studied. The research was conducted on three different immature cement pastes. Two Portland cements based on calcium silicate or aluminate compounds and a cement based on calcium sulfoaluminate compounds were used for preparation of cement pastes. The change in chemical composition of cement pastes and pore solutions, phase compositions, microstructures of cement pastes and their mechanical properties (strength, modulus of elasticity, dimensional and mass stability) were observed during a 365 days leaching period. The results indicate no significant impact of leaching on microstructure, modulus of elasticity, dimensional and mass stability. The observed strength decrease correlates with the observed changes in phase and chemical composition of the cement pastes and pore solutions.
Abstract (croatian)
Uvođenje novih materijala u postojeće građevinske norme zahtijeva podatke o trajnosnim svojstvima novih materijala. Nažalost, ispitivanja trajnosnih svojstava materijala nisu standardizirana. U ovom radu je opisano istraživanje procesa degradacije dekalcifikacijom ili izluživanjem. Istraživanje je provedeno na tri različite nezrele cementne paste. Dva tipa portlandskog cementa izgrađenih od kalcijevih silikata ili aluminata i cement izgrađenog od kalcijevih sulfoaluminata korišteni su za izradu uzoraka cementnih pasti u ovom istraživanju. Praćene su promjene kemijskog sastava cementnih pasta i pornih otopina, faznog sastava, mikrostrukture cementne paste kao i mehaničkih svojstava (čvrstoće, modula elastičnosti, promjene dimenzija i mase) u periodu izluživanja od 365 dana. Rezultati ispitivanja ne pokazuju značajan utjecaj izluživanja na mikrostrukturu, modul elastičnosti, dimenzionalnu i masenu stabilnosti. Uočeni pad čvrstoće povezan je s učenim promjenama faznog i kemijskog sastava cementnih pasti i pornih otopina.
Keywords
Keywords (croatian)
Languageenglish
URN:NBNurn:nbn:hr:217:449477
Study programmeTitle: Doctoral study in chemistry
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija (doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija)
Type of resourceText
Extent160 str. ; 30 cm
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
RepositoryRepository of Faculty of Science
Created on2020-01-27 13:18:22

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