ABSTRACT
ABSTRACT: Fly ash is common use (type II) mineral additive in concrete composition. According to European standards fly ash can be used in concrete produced with Portland cement CEM I or composite cement CEM II/A (excluding fly ash Portland cement CEM II/A-V). In the paper authors describe the use of fly ash for concrete with the following types of cements: Slag Portland cement CEM II/B-S 32,5R and Slag cement CEM III/A 32,5N – LH/HSR/NA. Ready mixed concrete as well as hardened concrete based on these cements and with addition of fly ash were characterized by positive properties – water absorption, consistency and compressive strength.
