Development of Self-Compacting Concrete Containing Fly Ash As Minneral Addition

Abstract: The main topic of this paper is to analyze the properties of self-compacting concrete (SCC) containing fly ash, compared with the properties of self-compacting concrete containing limestone filler. The key characteristics of SCC for confirming self-compactability and compressive strength were subject of investigation. The fly ash is a “cheap” waste that costs less than limestone filler. For the purpose of the experimental study the following fixed parameters are set: cement content and volume of fine aggregate. The cement content is fixed at 250 kg/m3, 350 kg/m3 and 450 kg/m3, and the volume of fine aggregate is determined to be 40%, 45% and 50% by mortar volume. Requirements for self-compactability are fully met for all tested SCC mixtures. In general, obtained results for workability of concrete are in the same class. The performed tests illustrate that fly ash may replace limestone filler as a mineral addition in SCC.