Due to the advantage of decrease in carbon footprint with the use of cement-less geopolymer concrete, researchers had
focused towards the study of the behaviour of geopolymer concrete on micro- and macro-scales. Recent researches are in a
continuous process to improve the mechanical properties of geopolymer concrete by replacing natural river sand with other
admixtures as fine aggregate. The objective of this review is to summarize and discuss the reported findings on the replacement
of river sand with various materials like fine bone China ceramic, recycled fine aggregate, Waste marble aggregate, shredded
rubber, iron tallings etc., The micro-structural properties of the such developed Geoploymer Concrete are discussed with the help
of XRD and SEM results
