Application of Alkali-Activated Sustainable Materials: A Step towards Net Zero Binder

Economic growth and rapid urbanization have resulted in the increase demand for infrastructure development. To meet this ever increasing demand, conventional construction materials such as concrete are used, which requires an energy intensive process that turn impacts environment adversely. Ordinary Portland Cement, being dominant binder industry, contributes around 8% of worldwide annual carbon emissions, is expected to reach 20% by 2050. Population has significant agro-industrial waste generation during recent years. Inadequate management raises a number environmental concerns. With growing economy rising living standards, global raw material consumption double 2060. The reutilization will aid their management, while conserving available resources. Alkali-activated (AAM) recently been introduced eco-friendly alternative binders with fewer impacts. AAM reduce need Cement (OPC) substituting it supplementary cementitious (SCM), therefore, reducing amount subsequent emissions. Alkali activation complex chemical between precursors (alumino-silicate materials) dissolution activators. Different react alkali activators different ways depending on properties. current study aims provide critical review potential wastes fresh hardened properties alkali-activated (AAC). understand design development AAC, influencing parameters molarity NaOH, activators, ratio discussed detail. curing regime its effect behavior mentioned. admixtures used regulate AAC highlighted. exhibited optimized embodied energy, operational life cycle cost, CO2 emission, rates than did. However, these results varied based them. This paper focuses should be viewed important contribution towards adoption practical applications. presents net zero making sustainable enhanced