Studie
3 years durability research on slag based mortars Final report
An experimental program was carried out to study long-term durability behavior of supplementary cementitious materials (SCM) systems. A total of five mixes were studied consisting of one Portland cement with silica fume, one Portland-fly ash system and three blast furnace slag systems. The samples were studied using Rapid Chloride Migration (RCM), electrical resistivity test, natural carbonation and polarization- and fluores-cence microscopy (PFM). This report contains data from two days up to three years. The conclusion is that the SCM systems used in this research, perform overall better in durability properties than just Portland cement. For high slag amounts (> 65%) a tradeoff between chloride and carbonation resistance is appearing