Vliv úpravy surovinových složek na vlastnosti alkalicky aktivovaných pojiv

Abstract

Nowadays the production of industrial wastes and secondary raw materials have a wide range of uses in the building industry. These secondary materials including for example: granulated blast furnace slag and fly ash, which are classed into groups of latently hydraulic materials. These materials are applicated in preparing geopolymer mixtures and concretes. The content of thesis was preparation the mixtures based on granulated blast furnace slag and fly ash. These mixtures were differed by weight of the individual components and mechanical activation of fly ash. Were monitored effects: the ratio of fly ash and his mechanical modifications on the bulk density and compressive strength of these composites. Were identified differences in the development phase composition of these materials. The changes of phase compostition by samples were monitored by resulting of weight changes and in bulk density during stepped tempered the samples to 300°C. The results show the effect of addition of fly ash and of his different quality on parameters by samples.