Institute of Construction and Architecture
Topic
Material composition of Heavyweight Self -Compacting Concrete based on Magnetite and Barite
PhD. program
Year of admission
2025
Name of the supervisor
Prof. Dr. Ing. Martin-Tchingnabé Palou
Contact:
Receiving school
Stavebná fakulta STU
Annotation
Despite the fact that concrete is massively manufactured and used worldwide, there are some specific constructions that require the use of special concrete and special technology. One of the scientific research areas of concrete products that is expected to move rapidly in the coming decades is the development of high-performance self-compacting heavyweight concrete for application in severe environments exposed to radiation. The present doctoral thesis aims at determining the mix proportion of binder, heavyweight aggregates, water to binder ratio, and additives to develop self-compacting concrete with bulk density higher than 3,000 kg/m3. It aims also at evaluating the engineering properties, pore structure, and microstructure of established heavyweight self-compacting concrete. Barite, magnetite, or their mix will be used as fillers, while multicomponent cement (Portland cement, blast furnace slag, metakaolin, and limestone at different proportions) as binders. The testing methods both for self-compacting and heavyweight concrete (V-funnel, S-Cone diameter, L-box, and S-Cone, Orimet flow time, mechanical and physical properties, durability, etc.) will be used for determining the characteristics of Heavyweight Self -Compacting.