Performance of alkali activated slag concrete under aggressive environment

The environmental effects of production of Portland cement (PC) have provoked to examine the growth of concrete with 100% replacement of cement with industrial byproducts containing high amount of Si and Al, which are activated by alkali solutions termed as geopolymer concrete. Concrete made with PC can be durable under mild exposure condition when properly designed whereas undergo deterioration under severe exposure condition. Since very few works have been performed on the ambient cured alkali activated slag concrete (AASC) under aggressive environmental condition, this work was intended to study the effect of binder content and sodium hydroxide concentration on AASC subjected to aggressive environment. In this regard, an experimental investigation was carried out to study the influence of AASC under chloride, acid and sulphate environment on its physical and mechanical properties. The results infer that the AASC mixes perform well under aggressive environment condition.