Institute of Construction and Architecture
Topic
Study of the material composition of new composite cements for the development of self-compacting concrete
PhD. program
Name of the supervisor
Prof.Dr.Ing. Martin-Tchingnabé Palou
Contact:
Receiving school
STU, Bratislava
Annotation
New composite blended cements are gaining in intensity as new eco-friendly construction materials. Some of them denoted CEM II/ C-M, CEM VI (S-P), CEM VI (S-V), CEM VI (S-L), CEM VI (S-LL), comprising slag, natural puzzolan, and limestone were developed. Compared to Ordinary Portland cement, CEM I, with its 95 % clinker content, the CEM II/C-M and CEM VI cements covered by EN 197-5 should enable broader development of more low-clinker options as one of the steps towards the goal of CO2 neutrality in cement and concrete industries. For example, for CEM II/C-M, the clinker content can be reduced to 50 % by mass, and for composite cements in the CEM VI group, up to 35 % by mass.
Therefore, the substitution of Portland cement clinker with reactive supplementary cementitious materials and limestone is currently the primary lever for reducing the carbon footprint of cement manufacture, and this is projected to continue for decades to come.
The present doctoral thesis investigates the material composition of new composite cements (Portland cement, blast furnace slag, metakaolin, and limestone at different proportions) as binders, natural and recycled aggregates, water-to-binder ratio, and additives to develop self-compacting concrete. It also aims to evaluate established self-compacting concrete's engineering properties, pore structure, and microstructure.
Therefore, the substitution of Portland cement clinker with reactive supplementary cementitious materials and limestone is currently the primary lever for reducing the carbon footprint of cement manufacture, and this is projected to continue for decades to come.
The present doctoral thesis investigates the material composition of new composite cements (Portland cement, blast furnace slag, metakaolin, and limestone at different proportions) as binders, natural and recycled aggregates, water-to-binder ratio, and additives to develop self-compacting concrete. It also aims to evaluate established self-compacting concrete's engineering properties, pore structure, and microstructure.