Wpływ dodatków popiołów z kotłów fluidalnych na właciwości ochronne betonu

In comparing the results achieved in concentrated water extracts from concretes modified with ash additives and from the reference concrete, and also taking into account the additional criteria, which engaging delimiting values of electrochemical parameters can infer, the use of ashes from hard coal combustion in fluidized beds as a cement replacement material did not worsen the protective proprieties of concrete. Concrete containing 15% and 30% of analysed ashes from power plant Katowice and Turów in relation to the mass of cement protects steel bars against corrosion correctly.