Resistance of Three-Component Cement Binders in Highly Chemically Corrosive Environments

The paper presents the results of a study of three-component binders involving Portland cement, pulverised blast-furnace slag and silica fume and their chemical resistance to ammonium sulphate. The study involved samples with a range of different mass-ratios between the components. The research programme on samples exposed to highly chemically corrosive environments included compression testing after 28 and 90 days of ageing and corrosion testing, including measurements of weight change and linear distortion. Samples were also analysed for the microstructural effects of ammonium sulphate using a scanning microscope with an EDS sound.