Abstract: Due to the surge in construction activities, the requirement of the aggregates has also increased, creating a huge burden upon natural resources and surroundings. However, the availability of aggregates has become scarce due to depletion of natural resources, resulting in longer hauling distances increasing the transportation cost. Alternate resources are being assessed in research, out of which recycled concrete aggregates have shown remarkable results as a construction and demolition waste material. Different researches have confirmed Recycled concrete aggregates (RCA) can play a substantial role in eliminating the concerns related to the scarcity of the conventional aggregates as well as reducing the burden on environment leading to a sustainable approach as its accumulation in the landfills has been increasing each year. This paper has focused on the use of RCA in Cement treated base (CTB) based on the literature review. This paper concludes that the mechanical and durability characteristics from the previous state-of-art have confirmed that the strength characteristics of RCA justify its use as a pavement material. Proper precautions must be taken before using it as it lacks in physical properties when compared to the conventional aggregates. Many pre-treatment methods are done prior to its use to enhance its properties. Hence, RCA characterization plays an important role before its use. Many researchers have claimed that RCA stabilized with cement can replace conventional aggregates up to 50% which reduces the cost significantly. Keywords: Recycled concrete aggregates, Cement treated base, Mechanical characteristics, Durability characteristics.