Properties and durability of low-emission cement and concrete

Formulations for regular, frost-resistant, high-strength, self-compacting and mass concretes based on cement blends containing siliceous fly ash, ground granulated blast furnace slag and CEM III/A and CEM III/B slag cements have been developed. The properties of the obtained concretes allow them to be used in the con- struction of facilities for various purposes, while reducing CO2 emissions into the air in the entire production chain due to the lower clinker content than in concretes with other cements. It is shown that the developed concrete mixes with a low water-cement ratio retain mobility and workability for at least 90 minutes, which ensures proper construction work.

Author: M. Talaj, K. Wandoch

Section: Science and production

Keywords: High Performance Concrete, Self-Compacting Concrete, freeze-thaw stable concrete, CO2 emission, workability, cement, fly ash, blast furnace slag