Hydraulic Activity of Mineral Fillers of Manufacturing Origin Mixed with Cement

摘要

The paper presents the results of determining the degree of hydraulic activity of manufactured mineral filler (concrete broken material, demolition of buildings and structures, ceramic brick fights, ash and slag waste from thermal power stations (TPS), substandard raw materials mixed with cement used in high-quality concrete mixtures. The paper describes the strength of the compositions based on fine mineral fillers and calcium hydroxide. The paper studies an x-ray of a control sample of concrete broken material and the mineral composition of the latter. The hydraulic activity of the mineral filler from concrete broken material containing up to 20-25% of non-hydrated grains of cement used in the preparation of concrete from which this filler was obtained. It was experimentally proved which confirms the correctness of the choice of this raw material as a finely ground active microfiller for concrete.