The object of the research is current state climate action strategy for cement and concrete production, including possible levers reducing CO2 emissions. It has been determined that main source carbon dioxide emissions per tonne Portland cement, subsequently cubic metre concrete, decarbonization calcium carbonate, raw material component clinker. also involves combustion fossil fuels, which are ...

This study examines the potential of using calcium-rich precursors to improve strength alkali-activated slag (AAS) cement at low temperature. To achieve this target, effect on early development AAS mortars cured 5°C was assessed. The investigated along with its internal temperature, microstructure and reaction products. It is found that can around 35% group Portland clinker gave highest strengt...

Abstract The reduction of clinker use is mandatory to lower the negative environmental impact concrete. In shotcrete mixes, similarly case conventional concrete, supplementary cementitious materials (SCMs) and proper mix design allow for substitution without compromising mechanical properties. However, on durability needs be further assessed understood. results from present study, obtained real...

The article presents modern research on the development of compositions and technologies light aggregates based natural man-made raw materials, as well mixtures containing both materials. As a material component, shungite, clays, silica – materials-diatomite, trepel flask are used. coal-enrichment waste coal-containing waste, fly ash, ash slags, oil sludge paper Light aggregate is prepared acco...

Operational data indicates that vertical roller cement mills (VRCM) consumed lesser energy when compared to horizontal/ball mills. A case study of a was carried out in Nigeria which experiencing lower production output and higher consumption. This research investigate reasons behind the low on VRCM. thorough analysis clinker storage facilities heat transfer across composite cylindrical silo wal...

The article considers a technical solution for the introduction of pozzolan additives into cement after grinding clinker. Such are fly ash CHP and from dump. use in composition reduces its cost energy intensity production