Influence of Multicomponent and Pozzolanic Cements Containing Calcareous Fly Ash and Other Mineral Admixtures on Properties of Fresh Cement Mixtures

The aim of research was to examine usability from technological point of view of cements containing as non-clinker constituents mix of calcareous fly ash (W) and other mineral admixtures - siliceous (V) fly ash, granulated blast furnace slag (S) and limestone (LL). Mixes with CEM II / A-M (V-W), CEM II / B-M (V-W), CEM IV / B-M (V-W) and CEM II / B-M (S-W) are characterized by better workability then mixes with CEM II/B-W and similar workability as mixes with CEM I. Such cements are characterized by acceptable technological properties and can be used as a common cement in a wide application range. Mixes with CEM II/B-M (LL-W) are characterized by worse workability and higher workability loss then mixes with CEM II/B-W and CEM I respectively. The use of cements containing calcareous fly ash W and ground limestone LL is not optimal. (paper)