alkali-activated slag cement and concrete: a review

Recently, alkali-activated concrete (aac) as an appropriate alternative to portland cement concrete (pcc) has drawn considerable attention owing to its acceptable properties and less environmental impacts. the current study presents a review of previous researches on alkali-activated slag cement concrete (aascc). the following issues are also covered in this study: an introduction to aascc and its constituents, environmental impacts, hydration reaction, hydration products, mechanical properties, high temperature resistance, attack resistance of acids and sulfates, water absorption, shrinkage, and its challenges in application. the results from different studies revealed a research gap to be filled. to be specific, several different parameters affect aascc properties; however, given that its properties are still partially unexplored, more researches are needed to find out its best engineering properties.