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Master's Thesis
Author of thesis: Ing. Jakub Kocian
Acad. year: 2025/2026
Supervisor: doc. Ing. Karel Dvořák, Ph.D.
Reviewer: Mgr. Dalibor Všianský, Ph.D.
This diploma thesis focuses on the study of mechanical properties and microstructural changes of cement-based composites containing alternative binders under conditions of controlled carbonation and moist curing. Experimentally, mixtures of Portland cement CEM I and belite clinker combined with ladle slag in various mass ratios were investigated. After pressing, the specimens were exposed either to a humid environment or to an atmosphere with a high CO₂ concentration in a carbonation chamber, while their geometrical parameters, bulk density, flexural tensile strength, and compressive strength, as well as mineralogical composition, were evaluated.
Carbonation, controlled carbonation, belite, slag, calcium silicates, C₂S, CO₂, alternative binders, curing
Date of defence
03.02.2026
Date of publish
02.02.2029
Result of the defence
Defended (thesis was successfully defended)
Grading
B
Process of defence
Student představil komisi formou prezentace svoji diplomovou práci a reagoval na připomínky a dotazy od oponenta vyjádřené v oponentském posudku i na otázky členů komise. Během obhajoby položili členové komise následující otázky: prof. Ing. Rostislav Drochytka, CSc., MBA, dr. h. c. - Jaká byla koncentrace CO2? Jaká byla vlhkost? Hovoříte jen o kalcitu, ale v jakých modifikacích? Jak to bylo dlouho v komoře? Ten ettringit vám vznikl jak a kdy? doc. Ing. Nikol Žižková, Ph.D. - Jak si vysvětlujete nárůst pevností v ohybu? Student velmi dobře reagoval na připomínky oponenta a snažil se zdůvodnit nevržená a použitá řešení. Rovněž na připomínky členů komise reagoval velmi dobře.
Language of thesis
Czech
Faculty
Fakulta stavební
Department
Institute of Technology of Building Materials and Components
Study programme
Civil Engineering – Building Materials and Technologies (NPC-SIM)
Composition of Committee
Ing. Karel Nosek, Ph.D. (předseda) Ing. Martin Luňáček, Ph.D. (místopředseda) prof. Ing. Rostislav Drochytka, CSc., MBA, dr. h. c. (člen) prof. Ing. Rudolf Hela, CSc. (člen) doc. Ing. Karel Dvořák, Ph.D. (člen) doc. Ing. Radomír Sokolář, Ph.D. (člen) doc. Ing. Lenka Bodnárová, Ph.D. (člen) doc. Ing. Nikol Žižková, Ph.D. (člen)
Supervisor’s reportdoc. Ing. Karel Dvořák, Ph.D.
Grade proposed by supervisor: B
Reviewer’s reportMgr. Dalibor Všianský, Ph.D.
Grade proposed by reviewer: B
Reasons for publication postponement
Publication of the final thesis has been postponed in compliance with the provisions of Section 47b (4) of Act No. 111/1998 Coll., on the Higher Education Institutions and on amendments and supplements to other acts, as amended. The defended work is part of an active research project, the results of which will be published only after its completion.
Responsibility: Mgr. et Mgr. Hana Odstrčilová