PRACTICAL USE OF CALCAEROUS FLY ASH IN PORTLAND-COMPOSITE CEMENT CEM II/B-M (V-W) 32,5R INDUSTRIAL PRODUCTION

Zbigniew Giergiczny, Damian Dziuk, Tomasz Puzak, Maciej Batog

Abstract: Production of Portland clinker, main component of cement, is one of the most determining factor of cement production impact on environment. Use of non-clinker constituents in cement is the principal method of reduction influence of this process on environment. Extension of mineral additives for cement domestic base is important from ecological and economical point of view. Main thesis of this paper was to determine Portland-composite cements with calcareous fly ash addition properties. Results of own research proved that calcareous fly ash has labile chemical composition and physical properties. Positive results of cement mortars were confirmed by concrete tests. Based on laboratory test results, decision on production of Portland-composite cement CEM II/B-M (V-W) 32,5R on an industrial scale was made. Tests results allowed to state that Portland-composite cement CEM II/B-M (V-W) 32,5R has similar parameters to other cements available on the market. Concrete tests made with this new cement confirmed similar properties to reference concrete. Results obtained in the thesis give the permission to conclude that in suitable technological conditions (grinding, component selection) calcareous fly ash can be a valuable component of common use cements (CEM II, CEM IV).

Keywords: Portland-composite cement, calcareous fly ash, industrial production.

DOI: https://doi.org/10.15623/ijret.2014.0325031