The doctoral dissertation submitted by Ing. David Markusík, titled “The role of alkali silicates in the technology of inorganic binders,” presents a detailed investigation into the chemical behaviour of these systems. Conducted at the Institute of Materials Chemistry, Faculty of Chemistry, BUT, the research focuses specifically on their physicochemical mechanisms and applied potential as surface treatments for cementitious materials.
The thesis stands out for its methodical approach to improving concrete durability through lithium silicate surface treatments. Building on a solid theoretical foundation in colloidal silica and alkali silicate chemistry, David designed a systematic experimental framework focusing on gelation kinetics, syneresis, and substrate interactions. His work on optimized glycol initiated gels highlights a deep understanding of both surface chemistry and material performance.
A key strength of the candidate’s doctoral trajectory was his expertise in advanced analytical techniques, specifically Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) and Laser-Induced Breakdown Spectroscopy (LIBS). David developed into a fully independent operator of these complex systems. His ability to process and interpret compositional and microstructural data directly enhanced the scientific depth of the work.
The scientific quality of the dissertation is clearly reflected in the candidate’s strong publication output. According to Web of Science, David has authored or co-authored twelve peer-reviewed papers in major international journals, including the Journal of Building Engineering, Ceramics International, and Open Ceramics. In addition, he actively presented his research findings at international scientific conferences.
David’s professional growth was further enhanced by a six-month research stay at the University of Palermo and a multi-week research placement at Ghent University, which significantly broadened his scientific scope and international collaboration skills. Alongside his primary research, he played an active role in institute projects, serving as a reliable team member on grants funded by the Czech Science Foundation (GAČR).
Beyond his research duties, David contributed significantly to the institute’s educational activities by leading Laboratory Classes in Inorganic Chemistry, as well as providing consultations for bachelor’s theses. Throughout his studies, he demonstrated high personal autonomy, strong organizational skills, and excellent experimental precision. His collaborative and constructive approach made him a valued member of the team.
Overall, the submitted thesis proves that Ing. David Markusík has reached a high level of scientific competence and contributed valuable, original knowledge to the field of inorganic binders. The work meets all legal and academic requirements for a doctoral dissertation. I fully recommend it to be accepted for defense before the expert committee.