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Optimization of Fly Ash Properties for the Use in Cement and Concrete

The use of fly ash in cement and concrete has long been a common practice. However, in the Czech Republic, one of the largest producers of fly ash in the world, there is still a great mistrust of this material. One of the main reasons is variability properties of fly ash. But standard ČSN EN 450-2 defines the possibilities of optimizing the properties of fly ash. This paper is dedicated to optimizing the properties of fly ash, namely sorting and mixing.